6x+15=5x+21

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Solution for 6x+15=5x+21 equation:


Simplifying
6x + 15 = 5x + 21

Reorder the terms:
15 + 6x = 5x + 21

Reorder the terms:
15 + 6x = 21 + 5x

Solving
15 + 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.
15 + 6x + -5x = 21 + 5x + -5x

Combine like terms: 6x + -5x = 1x
15 + 1x = 21 + 5x + -5x

Combine like terms: 5x + -5x = 0
15 + 1x = 21 + 0
15 + 1x = 21

Add '-15' to each side of the equation.
15 + -15 + 1x = 21 + -15

Combine like terms: 15 + -15 = 0
0 + 1x = 21 + -15
1x = 21 + -15

Combine like terms: 21 + -15 = 6
1x = 6

Divide each side by '1'.
x = 6

Simplifying
x = 6

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