15x-6=10x-21

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Solution for 15x-6=10x-21 equation:


Simplifying
15x + -6 = 10x + -21

Reorder the terms:
-6 + 15x = 10x + -21

Reorder the terms:
-6 + 15x = -21 + 10x

Solving
-6 + 15x = -21 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
-6 + 15x + -10x = -21 + 10x + -10x

Combine like terms: 15x + -10x = 5x
-6 + 5x = -21 + 10x + -10x

Combine like terms: 10x + -10x = 0
-6 + 5x = -21 + 0
-6 + 5x = -21

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

Combine like terms: -6 + 6 = 0
0 + 5x = -21 + 6
5x = -21 + 6

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

Divide each side by '5'.
x = -3

Simplifying
x = -3

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