X+3+5x=21

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Solution for X+3+5x=21 equation:


Simplifying
X + 3 + 5x = 21

Reorder the terms:
3 + X + 5x = 21

Solving
3 + X + 5x = 21

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + X + -3 + 5x = 21 + -3

Reorder the terms:
3 + -3 + X + 5x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + X + 5x = 21 + -3
X + 5x = 21 + -3

Combine like terms: 21 + -3 = 18
X + 5x = 18

Add '-5x' to each side of the equation.
X + 5x + -5x = 18 + -5x

Combine like terms: 5x + -5x = 0
X + 0 = 18 + -5x
X = 18 + -5x

Simplifying
X = 18 + -5x

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