10x+21=15x+6

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


Simplifying
10x + 21 = 15x + 6

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

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

Solving
21 + 10x = 6 + 15x

Solving for variable 'x'.

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

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

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

Combine like terms: 15x + -15x = 0
21 + -5x = 6 + 0
21 + -5x = 6

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

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

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

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

Simplifying
x = 3

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