2x-21+9x=7

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Solution for 2x-21+9x=7 equation:


Simplifying
2x + -21 + 9x = 7

Reorder the terms:
-21 + 2x + 9x = 7

Combine like terms: 2x + 9x = 11x
-21 + 11x = 7

Solving
-21 + 11x = 7

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 11x = 7 + 21

Combine like terms: -21 + 21 = 0
0 + 11x = 7 + 21
11x = 7 + 21

Combine like terms: 7 + 21 = 28
11x = 28

Divide each side by '11'.
x = 2.545454545

Simplifying
x = 2.545454545

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