-1+x+7x=-81

Simple and best practice solution for -1+x+7x=-81 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 -1+x+7x=-81 equation: 


Simplifying
-1 + x + 7x = -81

Combine like terms: x + 7x = 8x
-1 + 8x = -81

Solving
-1 + 8x = -81

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 8x = -81 + 1

Combine like terms: -1 + 1 = 0
0 + 8x = -81 + 1
8x = -81 + 1

Combine like terms: -81 + 1 = -80
8x = -80

Divide each side by '8'.
x = -10

Simplifying
x = -10

See similar equations:

| .66666x+5=21 | | 6=-3x(x+2) | | .75w-11=-1w | | -73.8r=-5704.74 | | 950+700+5x=650+400+9x | | 2x+4=4x-4 | | -3d-27=-8d-2 | | c+b-z=10 | | -6s+4-7s=20 | | ax-n=v | | 59m^2-4m=0 | | 6v+3=3(v+7) | | 9(n-5)+10n=69 | | 7x+x=7x+3 | | 5(3-x)-12=3(x+4)-15 | | 45-5x=4x+4*18 | | 2x-5=5+4 | | -6x-6+5x=-9 | | -6+2k=k-2k | | -8+2y=-48 | | 5-x-2-3+4x+5= | | 7w-6=4w-15 | | (x^2y-3x^2+y)+(3y-2x^2y)= | | 4r=2(7t+15) | | 10x+45=-20x-15 | | 12n+-2=10n+-12 | | 14j-2=6j+8 | | 6x-9x+x= | | -6a+21=40a-5 | | c-v+u=a | | 21x^2-9x=3x | | 5+3q(q-4)=(q+1) |

Equations solver categories