=(5x+7)-(3x-8)

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Solution for =(5x+7)-(3x-8) equation:


Simplifying
0 = (5x + 7) + -1(3x + -8)

Reorder the terms:
0 = (7 + 5x) + -1(3x + -8)

Remove parenthesis around (7 + 5x)
0 = 7 + 5x + -1(3x + -8)

Reorder the terms:
0 = 7 + 5x + -1(-8 + 3x)
0 = 7 + 5x + (-8 * -1 + 3x * -1)
0 = 7 + 5x + (8 + -3x)

Reorder the terms:
0 = 7 + 8 + 5x + -3x

Combine like terms: 7 + 8 = 15
0 = 15 + 5x + -3x

Combine like terms: 5x + -3x = 2x
0 = 15 + 2x

Solving
0 = 15 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
0 + -2x = 15 + 2x + -2x
Remove the zero:
-2x = 15 + 2x + -2x

Combine like terms: 2x + -2x = 0
-2x = 15 + 0
-2x = 15

Divide each side by '-2'.
x = -7.5

Simplifying
x = -7.5

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