4+7+x=18

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Solution for 4+7+x=18 equation: 


Simplifying
4 + 7 + x = 18

Combine like terms: 4 + 7 = 11
11 + x = 18

Solving
11 + x = 18

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 + x = 18 + -11

Combine like terms: 11 + -11 = 0
0 + x = 18 + -11
x = 18 + -11

Combine like terms: 18 + -11 = 7
x = 7

Simplifying
x = 7

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