9x+4=2x-3+21

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Solution for 9x+4=2x-3+21 equation:


Simplifying
9x + 4 = 2x + -3 + 21

Reorder the terms:
4 + 9x = 2x + -3 + 21

Reorder the terms:
4 + 9x = -3 + 21 + 2x

Combine like terms: -3 + 21 = 18
4 + 9x = 18 + 2x

Solving
4 + 9x = 18 + 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.
4 + 9x + -2x = 18 + 2x + -2x

Combine like terms: 9x + -2x = 7x
4 + 7x = 18 + 2x + -2x

Combine like terms: 2x + -2x = 0
4 + 7x = 18 + 0
4 + 7x = 18

Add '-4' to each side of the equation.
4 + -4 + 7x = 18 + -4

Combine like terms: 4 + -4 = 0
0 + 7x = 18 + -4
7x = 18 + -4

Combine like terms: 18 + -4 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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