15-7x=8x-30

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Solution for 15-7x=8x-30 equation:


Simplifying
15 + -7x = 8x + -30

Reorder the terms:
15 + -7x = -30 + 8x

Solving
15 + -7x = -30 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
15 + -7x + -8x = -30 + 8x + -8x

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

Combine like terms: 8x + -8x = 0
15 + -15x = -30 + 0
15 + -15x = -30

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

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

Combine like terms: -30 + -15 = -45
-15x = -45

Divide each side by '-15'.
x = 3

Simplifying
x = 3

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