(x+7)+5=15

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Solution for (x+7)+5=15 equation: 


Simplifying
(x + 7) + 5 = 15

Reorder the terms:
(7 + x) + 5 = 15

Remove parenthesis around (7 + x)
7 + x + 5 = 15

Reorder the terms:
7 + 5 + x = 15

Combine like terms: 7 + 5 = 12
12 + x = 15

Solving
12 + x = 15

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + x = 15 + -12

Combine like terms: 12 + -12 = 0
0 + x = 15 + -12
x = 15 + -12

Combine like terms: 15 + -12 = 3
x = 3

Simplifying
x = 3

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