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

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


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

Reorder the terms:
-7(-7 + x) + -1(-8x + 9) = 4
(-7 * -7 + x * -7) + -1(-8x + 9) = 4
(49 + -7x) + -1(-8x + 9) = 4

Reorder the terms:
49 + -7x + -1(9 + -8x) = 4
49 + -7x + (9 * -1 + -8x * -1) = 4
49 + -7x + (-9 + 8x) = 4

Reorder the terms:
49 + -9 + -7x + 8x = 4

Combine like terms: 49 + -9 = 40
40 + -7x + 8x = 4

Combine like terms: -7x + 8x = 1x
40 + 1x = 4

Solving
40 + 1x = 4

Solving for variable 'x'.

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

Add '-40' to each side of the equation.
40 + -40 + 1x = 4 + -40

Combine like terms: 40 + -40 = 0
0 + 1x = 4 + -40
1x = 4 + -40

Combine like terms: 4 + -40 = -36
1x = -36

Divide each side by '1'.
x = -36

Simplifying
x = -36

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