5x+15=6x-21

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


Simplifying
5x + 15 = 6x + -21

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

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

Solving
15 + 5x = -21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
15 + 5x + -6x = -21 + 6x + -6x

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

Combine like terms: 6x + -6x = 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 = -36
-1x = -36

Divide each side by '-1'.
x = 36

Simplifying
x = 36

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