(x^2-9x-9)-(7x^2+3x+4)=(x^2-9x-9)-(7x^2+3x+4)

Simple and best practice solution for (x^2-9x-9)-(7x^2+3x+4)=(x^2-9x-9)-(7x^2+3x+4) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for (x^2-9x-9)-(7x^2+3x+4)=(x^2-9x-9)-(7x^2+3x+4) equation: 


Simplifying
(x2 + -9x + -9) + -1(7x2 + 3x + 4) = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Reorder the terms:
(-9 + -9x + x2) + -1(7x2 + 3x + 4) = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Remove parenthesis around (-9 + -9x + x2)
-9 + -9x + x2 + -1(7x2 + 3x + 4) = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Reorder the terms:
-9 + -9x + x2 + -1(4 + 3x + 7x2) = (x2 + -9x + -9) + -1(7x2 + 3x + 4)
-9 + -9x + x2 + (4 * -1 + 3x * -1 + 7x2 * -1) = (x2 + -9x + -9) + -1(7x2 + 3x + 4)
-9 + -9x + x2 + (-4 + -3x + -7x2) = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Reorder the terms:
-9 + -4 + -9x + -3x + x2 + -7x2 = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Combine like terms: -9 + -4 = -13
-13 + -9x + -3x + x2 + -7x2 = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Combine like terms: -9x + -3x = -12x
-13 + -12x + x2 + -7x2 = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Combine like terms: x2 + -7x2 = -6x2
-13 + -12x + -6x2 = (x2 + -9x + -9) + -1(7x2 + 3x + 4)

Reorder the terms:
-13 + -12x + -6x2 = (-9 + -9x + x2) + -1(7x2 + 3x + 4)

Remove parenthesis around (-9 + -9x + x2)
-13 + -12x + -6x2 = -9 + -9x + x2 + -1(7x2 + 3x + 4)

Reorder the terms:
-13 + -12x + -6x2 = -9 + -9x + x2 + -1(4 + 3x + 7x2)
-13 + -12x + -6x2 = -9 + -9x + x2 + (4 * -1 + 3x * -1 + 7x2 * -1)
-13 + -12x + -6x2 = -9 + -9x + x2 + (-4 + -3x + -7x2)

Reorder the terms:
-13 + -12x + -6x2 = -9 + -4 + -9x + -3x + x2 + -7x2

Combine like terms: -9 + -4 = -13
-13 + -12x + -6x2 = -13 + -9x + -3x + x2 + -7x2

Combine like terms: -9x + -3x = -12x
-13 + -12x + -6x2 = -13 + -12x + x2 + -7x2

Combine like terms: x2 + -7x2 = -6x2
-13 + -12x + -6x2 = -13 + -12x + -6x2

Add '13' to each side of the equation.
-13 + -12x + 13 + -6x2 = -13 + -12x + 13 + -6x2

Reorder the terms:
-13 + 13 + -12x + -6x2 = -13 + -12x + 13 + -6x2

Combine like terms: -13 + 13 = 0
0 + -12x + -6x2 = -13 + -12x + 13 + -6x2
-12x + -6x2 = -13 + -12x + 13 + -6x2

Reorder the terms:
-12x + -6x2 = -13 + 13 + -12x + -6x2

Combine like terms: -13 + 13 = 0
-12x + -6x2 = 0 + -12x + -6x2
-12x + -6x2 = -12x + -6x2

Add '12x' to each side of the equation.
-12x + 12x + -6x2 = -12x + 12x + -6x2

Combine like terms: -12x + 12x = 0
0 + -6x2 = -12x + 12x + -6x2
-6x2 = -12x + 12x + -6x2

Combine like terms: -12x + 12x = 0
-6x2 = 0 + -6x2
-6x2 = -6x2

Add '6x2' to each side of the equation.
-6x2 + 6x2 = -6x2 + 6x2

Combine like terms: -6x2 + 6x2 = 0
0 = -6x2 + 6x2

Combine like terms: -6x2 + 6x2 = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

See similar equations:

| 7x^2-41x+30= | | 7.72=2(3.14)r | | 9(3-2x)=1(10-8x) | | 4y+1y+1+5y-2=79 | | x/12-16x/10=22-x | | -4[3+4(-8+4)]+11= | | 6(v+2)-8v=-6 | | 10r+2.70=12r | | 18-3x=x | | 10(s-8)=-104 | | 25+5x=169-3x | | 7x-3=-21 | | 10x+7y=16 | | 2x+7y+(-7y)+(-7x)= | | 2-x=6-2x | | 4-3x=8-8-x | | 12x-(9+4x)= | | 6-2x=2-2x | | -1/5x-2/9 | | x^2+29x-30=0 | | 10h+2=8h+3 | | 3b+6g-7= | | (4x+2y)+(-5x+3y)= | | 3x+1=7x-8 | | 16x-(4+7x)= | | 3x^2+24x+54=12 | | 12x+38=10x-58 | | (1-x)/x=0.65 | | 8x-26=-90 | | p^2+18p+32=0 | | 5+6t=23 | | 5(u+8)-8u=31 |

Equations solver categories