9x-49=2x-21

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Solution for 9x-49=2x-21 equation:


Simplifying
9x + -49 = 2x + -21

Reorder the terms:
-49 + 9x = 2x + -21

Reorder the terms:
-49 + 9x = -21 + 2x

Solving
-49 + 9x = -21 + 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.
-49 + 9x + -2x = -21 + 2x + -2x

Combine like terms: 9x + -2x = 7x
-49 + 7x = -21 + 2x + -2x

Combine like terms: 2x + -2x = 0
-49 + 7x = -21 + 0
-49 + 7x = -21

Add '49' to each side of the equation.
-49 + 49 + 7x = -21 + 49

Combine like terms: -49 + 49 = 0
0 + 7x = -21 + 49
7x = -21 + 49

Combine like terms: -21 + 49 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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