7x(5-3x)-4+21x^2-25x=12

Simple and best practice solution for 7x(5-3x)-4+21x^2-25x=12 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 7x(5-3x)-4+21x^2-25x=12 equation: 


Simplifying
7x(5 + -3x) + -4 + 21x2 + -25x = 12
(5 * 7x + -3x * 7x) + -4 + 21x2 + -25x = 12
(35x + -21x2) + -4 + 21x2 + -25x = 12

Reorder the terms:
-4 + 35x + -25x + -21x2 + 21x2 = 12

Combine like terms: 35x + -25x = 10x
-4 + 10x + -21x2 + 21x2 = 12

Combine like terms: -21x2 + 21x2 = 0
-4 + 10x + 0 = 12
-4 + 10x = 12

Solving
-4 + 10x = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '4' to each side of the equation.
-4 + 4 + 10x = 12 + 4

Combine like terms: -4 + 4 = 0
0 + 10x = 12 + 4
10x = 12 + 4

Combine like terms: 12 + 4 = 16
10x = 16

Divide each side by '10'.
x = 1.6

Simplifying
x = 1.6

See similar equations:

| -5x+7(3x+2)=-98 | | -80=-8(x-9) | | hi=3 | | 3z/10-9=2 | | 38=2x+6 | | -131=2x-7(3x-3) | | 4x-8+56=180 | | 6y+(-3x)-7x+1-2y+8= | | 1 = q3– 3 | | 5(x-4)=2x-13 | | 12(-8X+16)=54 | | 52+69+113+x=360 | | 27-2x=77 | | -9+2x+10+(-4x)= | | 6=0.66666666667y | | x=2+-8y | | -13-5m=2m+8 | | 4(2Y-6)=0 | | x+(15-x)=286 | | 209-18x=479 | | 14x+1=16x-1 | | m+8m-5m+6= | | 2x^2+x-7=-2 | | x-10/9=8/3 | | (6x-7)-(4x-10)=23 | | 3y-10=59 | | -5(M+3)=6M | | 24(x-15)+16x=286 | | 8-9x-13= | | (x+1)(x+2)(x+3)(x+4)=864 | | 55+66+1009= | | 5(4x-9)-6=5(x-2)+49 |

Equations solver categories