90=4X-(2X-60)

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Solution for 90=4X-(2X-60) equation:


Simplifying
90 = 4X + -1(2X + -60)

Reorder the terms:
90 = 4X + -1(-60 + 2X)
90 = 4X + (-60 * -1 + 2X * -1)
90 = 4X + (60 + -2X)

Reorder the terms:
90 = 60 + 4X + -2X

Combine like terms: 4X + -2X = 2X
90 = 60 + 2X

Solving
90 = 60 + 2X

Solving for variable 'X'.

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

Add '-2X' to each side of the equation.
90 + -2X = 60 + 2X + -2X

Combine like terms: 2X + -2X = 0
90 + -2X = 60 + 0
90 + -2X = 60

Add '-90' to each side of the equation.
90 + -90 + -2X = 60 + -90

Combine like terms: 90 + -90 = 0
0 + -2X = 60 + -90
-2X = 60 + -90

Combine like terms: 60 + -90 = -30
-2X = -30

Divide each side by '-2'.
X = 15

Simplifying
X = 15

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