x+11=7-x

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Solution for x+11=7-x equation:


Simplifying
x + 11 = 7 + -1x

Reorder the terms:
11 + x = 7 + -1x

Solving
11 + x = 7 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
11 + x + x = 7 + -1x + x

Combine like terms: x + x = 2x
11 + 2x = 7 + -1x + x

Combine like terms: -1x + x = 0
11 + 2x = 7 + 0
11 + 2x = 7

Add '-11' to each side of the equation.
11 + -11 + 2x = 7 + -11

Combine like terms: 11 + -11 = 0
0 + 2x = 7 + -11
2x = 7 + -11

Combine like terms: 7 + -11 = -4
2x = -4

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

Simplifying
x = -2

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