a+7+2=15

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Solution for a+7+2=15 equation:


Simplifying
a + 7 + 2 = 15

Reorder the terms:
7 + 2 + a = 15

Combine like terms: 7 + 2 = 9
9 + a = 15

Solving
9 + a = 15

Solving for variable 'a'.

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

Add '-9' to each side of the equation.
9 + -9 + a = 15 + -9

Combine like terms: 9 + -9 = 0
0 + a = 15 + -9
a = 15 + -9

Combine like terms: 15 + -9 = 6
a = 6

Simplifying
a = 6

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