3x-x+11=21

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


Simplifying
3x + -1x + 11 = 21

Reorder the terms:
11 + 3x + -1x = 21

Combine like terms: 3x + -1x = 2x
11 + 2x = 21

Solving
11 + 2x = 21

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + 2x = 21 + -11

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

Combine like terms: 21 + -11 = 10
2x = 10

Divide each side by '2'.
x = 5

Simplifying
x = 5

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