12+6=13+x

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Solution for 12+6=13+x equation:


Simplifying
12 + 6 = 13 + x

Combine like terms: 12 + 6 = 18
18 = 13 + x

Solving
18 = 13 + 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.
18 + -1x = 13 + x + -1x

Combine like terms: x + -1x = 0
18 + -1x = 13 + 0
18 + -1x = 13

Add '-18' to each side of the equation.
18 + -18 + -1x = 13 + -18

Combine like terms: 18 + -18 = 0
0 + -1x = 13 + -18
-1x = 13 + -18

Combine like terms: 13 + -18 = -5
-1x = -5

Divide each side by '-1'.
x = 5

Simplifying
x = 5

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