90=(3x-45)+(2x+15)

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Solution for 90=(3x-45)+(2x+15) equation:


Simplifying
90 = (3x + -45) + (2x + 15)

Reorder the terms:
90 = (-45 + 3x) + (2x + 15)

Remove parenthesis around (-45 + 3x)
90 = -45 + 3x + (2x + 15)

Reorder the terms:
90 = -45 + 3x + (15 + 2x)

Remove parenthesis around (15 + 2x)
90 = -45 + 3x + 15 + 2x

Reorder the terms:
90 = -45 + 15 + 3x + 2x

Combine like terms: -45 + 15 = -30
90 = -30 + 3x + 2x

Combine like terms: 3x + 2x = 5x
90 = -30 + 5x

Solving
90 = -30 + 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.
90 + -5x = -30 + 5x + -5x

Combine like terms: 5x + -5x = 0
90 + -5x = -30 + 0
90 + -5x = -30

Add '-90' to each side of the equation.
90 + -90 + -5x = -30 + -90

Combine like terms: 90 + -90 = 0
0 + -5x = -30 + -90
-5x = -30 + -90

Combine like terms: -30 + -90 = -120
-5x = -120

Divide each side by '-5'.
x = 24

Simplifying
x = 24

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