9x-21=7x+23

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Solution for 9x-21=7x+23 equation:


Simplifying
9x + -21 = 7x + 23

Reorder the terms:
-21 + 9x = 7x + 23

Reorder the terms:
-21 + 9x = 23 + 7x

Solving
-21 + 9x = 23 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-21 + 9x + -7x = 23 + 7x + -7x

Combine like terms: 9x + -7x = 2x
-21 + 2x = 23 + 7x + -7x

Combine like terms: 7x + -7x = 0
-21 + 2x = 23 + 0
-21 + 2x = 23

Add '21' to each side of the equation.
-21 + 21 + 2x = 23 + 21

Combine like terms: -21 + 21 = 0
0 + 2x = 23 + 21
2x = 23 + 21

Combine like terms: 23 + 21 = 44
2x = 44

Divide each side by '2'.
x = 22

Simplifying
x = 22

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