2+7=x+11

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Solution for 2+7=x+11 equation: 


Simplifying
2 + 7 = x + 11

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

Reorder the terms:
9 = 11 + x

Solving
9 = 11 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
9 + -1x = 11 + x + -1x

Combine like terms: x + -1x = 0
9 + -1x = 11 + 0
9 + -1x = 11

Add '-9' to each side of the equation.
9 + -9 + -1x = 11 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = 11 + -9
-1x = 11 + -9

Combine like terms: 11 + -9 = 2
-1x = 2

Divide each side by '-1'.
x = -2

Simplifying
x = -2

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