9x+21=11x+3

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Solution for 9x+21=11x+3 equation:


Simplifying
9x + 21 = 11x + 3

Reorder the terms:
21 + 9x = 11x + 3

Reorder the terms:
21 + 9x = 3 + 11x

Solving
21 + 9x = 3 + 11x

Solving for variable 'x'.

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

Add '-11x' to each side of the equation.
21 + 9x + -11x = 3 + 11x + -11x

Combine like terms: 9x + -11x = -2x
21 + -2x = 3 + 11x + -11x

Combine like terms: 11x + -11x = 0
21 + -2x = 3 + 0
21 + -2x = 3

Add '-21' to each side of the equation.
21 + -21 + -2x = 3 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 3 + -21
-2x = 3 + -21

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

Divide each side by '-2'.
x = 9

Simplifying
x = 9

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