10x-9=21+2x+3x

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Solution for 10x-9=21+2x+3x equation:


Simplifying
10x + -9 = 21 + 2x + 3x

Reorder the terms:
-9 + 10x = 21 + 2x + 3x

Combine like terms: 2x + 3x = 5x
-9 + 10x = 21 + 5x

Solving
-9 + 10x = 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.
-9 + 10x + -5x = 21 + 5x + -5x

Combine like terms: 10x + -5x = 5x
-9 + 5x = 21 + 5x + -5x

Combine like terms: 5x + -5x = 0
-9 + 5x = 21 + 0
-9 + 5x = 21

Add '9' to each side of the equation.
-9 + 9 + 5x = 21 + 9

Combine like terms: -9 + 9 = 0
0 + 5x = 21 + 9
5x = 21 + 9

Combine like terms: 21 + 9 = 30
5x = 30

Divide each side by '5'.
x = 6

Simplifying
x = 6

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