4(-x-7)+8(x+9)=12

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Solution for 4(-x-7)+8(x+9)=12 equation:


Simplifying
4(-1x + -7) + 8(x + 9) = 12

Reorder the terms:
4(-7 + -1x) + 8(x + 9) = 12
(-7 * 4 + -1x * 4) + 8(x + 9) = 12
(-28 + -4x) + 8(x + 9) = 12

Reorder the terms:
-28 + -4x + 8(9 + x) = 12
-28 + -4x + (9 * 8 + x * 8) = 12
-28 + -4x + (72 + 8x) = 12

Reorder the terms:
-28 + 72 + -4x + 8x = 12

Combine like terms: -28 + 72 = 44
44 + -4x + 8x = 12

Combine like terms: -4x + 8x = 4x
44 + 4x = 12

Solving
44 + 4x = 12

Solving for variable 'x'.

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

Add '-44' to each side of the equation.
44 + -44 + 4x = 12 + -44

Combine like terms: 44 + -44 = 0
0 + 4x = 12 + -44
4x = 12 + -44

Combine like terms: 12 + -44 = -32
4x = -32

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

Simplifying
x = -8

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