18+6x=5x+21

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Solution for 18+6x=5x+21 equation:


Simplifying
18 + 6x = 5x + 21

Reorder the terms:
18 + 6x = 21 + 5x

Solving
18 + 6x = 21 + 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.
18 + 6x + -5x = 21 + 5x + -5x

Combine like terms: 6x + -5x = 1x
18 + 1x = 21 + 5x + -5x

Combine like terms: 5x + -5x = 0
18 + 1x = 21 + 0
18 + 1x = 21

Add '-18' to each side of the equation.
18 + -18 + 1x = 21 + -18

Combine like terms: 18 + -18 = 0
0 + 1x = 21 + -18
1x = 21 + -18

Combine like terms: 21 + -18 = 3
1x = 3

Divide each side by '1'.
x = 3

Simplifying
x = 3

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