12-(-8x+7)=-15x+30

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Solution for 12-(-8x+7)=-15x+30 equation:


Simplifying
12 + -1(-8x + 7) = -15x + 30

Reorder the terms:
12 + -1(7 + -8x) = -15x + 30
12 + (7 * -1 + -8x * -1) = -15x + 30
12 + (-7 + 8x) = -15x + 30

Combine like terms: 12 + -7 = 5
5 + 8x = -15x + 30

Reorder the terms:
5 + 8x = 30 + -15x

Solving
5 + 8x = 30 + -15x

Solving for variable 'x'.

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

Add '15x' to each side of the equation.
5 + 8x + 15x = 30 + -15x + 15x

Combine like terms: 8x + 15x = 23x
5 + 23x = 30 + -15x + 15x

Combine like terms: -15x + 15x = 0
5 + 23x = 30 + 0
5 + 23x = 30

Add '-5' to each side of the equation.
5 + -5 + 23x = 30 + -5

Combine like terms: 5 + -5 = 0
0 + 23x = 30 + -5
23x = 30 + -5

Combine like terms: 30 + -5 = 25
23x = 25

Divide each side by '23'.
x = 1.086956522

Simplifying
x = 1.086956522

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