90=(15x-2)+(7x+4)

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Solution for 90=(15x-2)+(7x+4) equation:


Simplifying
90 = (15x + -2) + (7x + 4)

Reorder the terms:
90 = (-2 + 15x) + (7x + 4)

Remove parenthesis around (-2 + 15x)
90 = -2 + 15x + (7x + 4)

Reorder the terms:
90 = -2 + 15x + (4 + 7x)

Remove parenthesis around (4 + 7x)
90 = -2 + 15x + 4 + 7x

Reorder the terms:
90 = -2 + 4 + 15x + 7x

Combine like terms: -2 + 4 = 2
90 = 2 + 15x + 7x

Combine like terms: 15x + 7x = 22x
90 = 2 + 22x

Solving
90 = 2 + 22x

Solving for variable 'x'.

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

Add '-22x' to each side of the equation.
90 + -22x = 2 + 22x + -22x

Combine like terms: 22x + -22x = 0
90 + -22x = 2 + 0
90 + -22x = 2

Add '-90' to each side of the equation.
90 + -90 + -22x = 2 + -90

Combine like terms: 90 + -90 = 0
0 + -22x = 2 + -90
-22x = 2 + -90

Combine like terms: 2 + -90 = -88
-22x = -88

Divide each side by '-22'.
x = 4

Simplifying
x = 4

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