X+18+3x+20=90

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Solution for X+18+3x+20=90 equation:


Simplifying
X + 18 + 3x + 20 = 90

Reorder the terms:
18 + 20 + X + 3x = 90

Combine like terms: 18 + 20 = 38
38 + X + 3x = 90

Solving
38 + X + 3x = 90

Solving for variable 'X'.

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

Add '-38' to each side of the equation.
38 + X + -38 + 3x = 90 + -38

Reorder the terms:
38 + -38 + X + 3x = 90 + -38

Combine like terms: 38 + -38 = 0
0 + X + 3x = 90 + -38
X + 3x = 90 + -38

Combine like terms: 90 + -38 = 52
X + 3x = 52

Add '-3x' to each side of the equation.
X + 3x + -3x = 52 + -3x

Combine like terms: 3x + -3x = 0
X + 0 = 52 + -3x
X = 52 + -3x

Simplifying
X = 52 + -3x

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