9x-21=5x+10

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Solution for 9x-21=5x+10 equation:


Simplifying
9x + -21 = 5x + 10

Reorder the terms:
-21 + 9x = 5x + 10

Reorder the terms:
-21 + 9x = 10 + 5x

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

Combine like terms: 9x + -5x = 4x
-21 + 4x = 10 + 5x + -5x

Combine like terms: 5x + -5x = 0
-21 + 4x = 10 + 0
-21 + 4x = 10

Add '21' to each side of the equation.
-21 + 21 + 4x = 10 + 21

Combine like terms: -21 + 21 = 0
0 + 4x = 10 + 21
4x = 10 + 21

Combine like terms: 10 + 21 = 31
4x = 31

Divide each side by '4'.
x = 7.75

Simplifying
x = 7.75

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