x^2-9x-7=-7x-4

Simple and best practice solution for x^2-9x-7=-7x-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-7=-7x-4 equation:


Simplifying
x2 + -9x + -7 = -7x + -4

Reorder the terms:
-7 + -9x + x2 = -7x + -4

Reorder the terms:
-7 + -9x + x2 = -4 + -7x

Solving
-7 + -9x + x2 = -4 + -7x

Solving for variable 'x'.

Reorder the terms:
-7 + 4 + -9x + 7x + x2 = -4 + -7x + 4 + 7x

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

Combine like terms: -9x + 7x = -2x
-3 + -2x + x2 = -4 + -7x + 4 + 7x

Reorder the terms:
-3 + -2x + x2 = -4 + 4 + -7x + 7x

Combine like terms: -4 + 4 = 0
-3 + -2x + x2 = 0 + -7x + 7x
-3 + -2x + x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-3 + -2x + x2 = 0

Factor a trinomial.
(-1 + -1x)(3 + -1x) = 0

Subproblem 1

Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Solution

x = {-1, 3}

See similar equations:

| y-2.5=-4 | | 12t-4t+2t=30 | | 5-n=0 | | 31x=89 | | -(x-6)=8x | | 8(3b-4)-1=9+36 | | 32=20+c | | -3x+2(7x+17)=111 | | 8n-(3n+4)=26 | | 6a+-4=44 | | 31x=39 | | x^2-6x=2x+x^2 | | 4+d=25 | | x^2-2x-2=1 | | 5+n=12 | | 3x+38=12x-32 | | h+(-219)= | | (g+4)-3-=1+9 | | x-20=300 | | (2c+5d)+(6c-3d)+(2c+7d)= | | 7x+14-3=30 | | x^2+8-20=0 | | S=-16t^2-128t-50 | | 5x^2+14x=3 | | 3m+5+10=45 | | 291=970(1-x) | | 7=42*s | | y+2x=525 | | -6x+2(x+13)=2 | | x+(2x)=525 | | b-5+2b=23 | | x+2x=525 |

Equations solver categories