2(x-1)+15=90

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Solution for 2(x-1)+15=90 equation: 


Simplifying
2(x + -1) + 15 = 90

Reorder the terms:
2(-1 + x) + 15 = 90
(-1 * 2 + x * 2) + 15 = 90
(-2 + 2x) + 15 = 90

Reorder the terms:
-2 + 15 + 2x = 90

Combine like terms: -2 + 15 = 13
13 + 2x = 90

Solving
13 + 2x = 90

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 2x = 90 + -13

Combine like terms: 13 + -13 = 0
0 + 2x = 90 + -13
2x = 90 + -13

Combine like terms: 90 + -13 = 77
2x = 77

Divide each side by '2'.
x = 38.5

Simplifying
x = 38.5

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