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

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


Simplifying
(8x + -7) + -1(9x + 7) = 0

Reorder the terms:
(-7 + 8x) + -1(9x + 7) = 0

Remove parenthesis around (-7 + 8x)
-7 + 8x + -1(9x + 7) = 0

Reorder the terms:
-7 + 8x + -1(7 + 9x) = 0
-7 + 8x + (7 * -1 + 9x * -1) = 0
-7 + 8x + (-7 + -9x) = 0

Reorder the terms:
-7 + -7 + 8x + -9x = 0

Combine like terms: -7 + -7 = -14
-14 + 8x + -9x = 0

Combine like terms: 8x + -9x = -1x
-14 + -1x = 0

Solving
-14 + -1x = 0

Solving for variable 'x'.

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

Add '14' to each side of the equation.
-14 + 14 + -1x = 0 + 14

Combine like terms: -14 + 14 = 0
0 + -1x = 0 + 14
-1x = 0 + 14

Combine like terms: 0 + 14 = 14
-1x = 14

Divide each side by '-1'.
x = -14

Simplifying
x = -14

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