2(a+7)+-7=9

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Solution for 2(a+7)+-7=9 equation:


Simplifying
2(a + 7) + -7 = 9

Reorder the terms:
2(7 + a) + -7 = 9
(7 * 2 + a * 2) + -7 = 9
(14 + 2a) + -7 = 9

Reorder the terms:
14 + -7 + 2a = 9

Combine like terms: 14 + -7 = 7
7 + 2a = 9

Solving
7 + 2a = 9

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 + 2a = 9 + -7

Combine like terms: 7 + -7 = 0
0 + 2a = 9 + -7
2a = 9 + -7

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

Divide each side by '2'.
a = 1

Simplifying
a = 1

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