81=-x-7(x-7)

Simple and best practice solution for 81=-x-7(x-7) 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 81=-x-7(x-7) equation:


Simplifying
81 = -1x + -7(x + -7)

Reorder the terms:
81 = -1x + -7(-7 + x)
81 = -1x + (-7 * -7 + x * -7)
81 = -1x + (49 + -7x)

Reorder the terms:
81 = 49 + -1x + -7x

Combine like terms: -1x + -7x = -8x
81 = 49 + -8x

Solving
81 = 49 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
81 + 8x = 49 + -8x + 8x

Combine like terms: -8x + 8x = 0
81 + 8x = 49 + 0
81 + 8x = 49

Add '-81' to each side of the equation.
81 + -81 + 8x = 49 + -81

Combine like terms: 81 + -81 = 0
0 + 8x = 49 + -81
8x = 49 + -81

Combine like terms: 49 + -81 = -32
8x = -32

Divide each side by '8'.
x = -4

Simplifying
x = -4

See similar equations:

| 6(5+4x)=-162 | | 19x=9x | | -6(1+5n)=-156 | | 7[9-(3x-4)]=105x+203 | | 7a-3+8=12 | | -7x^2+43xy-6y^2= | | 0=m-1+1 | | (x+2)*(x+5)=180 | | 4.1x+8.3=41.264 | | (-1/4-1/2)-(-11/8-1)= | | 3(w+3)-6w=30 | | -7+7n+8=8 | | 32=-2u | | (x+2)(x+2)=-18 | | -7+7n+8=12 | | 9m-18=-27 | | -6x+30= | | 2=-0.4*X^2 | | r+8r=-18 | | 9m-18=27 | | 7x+5y-5y-8y=0 | | x^2=1.7 | | (2+x)(5+x)=180 | | 2y^2+6y-36=0 | | -8+16z= | | 3(x-4)-5=3x+2 | | 6+6(2n-1)=3+12n | | f+14=61 | | 2x-(4y+3x)= | | 15b^2+19b-1=-7 | | 100=y-50 | | 5x^2-21=59 |

Equations solver categories