30-15=5(x-1)

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Solution for 30-15=5(x-1) equation:


Simplifying
30 + -15 = 5(x + -1)

Combine like terms: 30 + -15 = 15
15 = 5(x + -1)

Reorder the terms:
15 = 5(-1 + x)
15 = (-1 * 5 + x * 5)
15 = (-5 + 5x)

Solving
15 = -5 + 5x

Solving for variable 'x'.

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

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

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

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

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

Combine like terms: -5 + -15 = -20
-5x = -20

Divide each side by '-5'.
x = 4

Simplifying
x = 4

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