(a-7)=15

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Solution for (a-7)=15 equation: 


Simplifying
(a + -7) = 15

Reorder the terms:
(-7 + a) = 15

Remove parenthesis around (-7 + a)
-7 + a = 15

Solving
-7 + a = 15

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 7 + a = 15 + 7

Combine like terms: -7 + 7 = 0
0 + a = 15 + 7
a = 15 + 7

Combine like terms: 15 + 7 = 22
a = 22

Simplifying
a = 22

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