9x+21=2x+10

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


Simplifying
9x + 21 = 2x + 10

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

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

Solving
21 + 9x = 10 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
21 + 9x + -2x = 10 + 2x + -2x

Combine like terms: 9x + -2x = 7x
21 + 7x = 10 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 + 7x = 10 + 0
21 + 7x = 10

Add '-21' to each side of the equation.
21 + -21 + 7x = 10 + -21

Combine like terms: 21 + -21 = 0
0 + 7x = 10 + -21
7x = 10 + -21

Combine like terms: 10 + -21 = -11
7x = -11

Divide each side by '7'.
x = -1.571428571

Simplifying
x = -1.571428571

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