-a+5+2(a+7)=12

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Solution for -a+5+2(a+7)=12 equation:


Simplifying
-1a + 5 + 2(a + 7) = 12

Reorder the terms:
-1a + 5 + 2(7 + a) = 12
-1a + 5 + (7 * 2 + a * 2) = 12
-1a + 5 + (14 + 2a) = 12

Reorder the terms:
5 + 14 + -1a + 2a = 12

Combine like terms: 5 + 14 = 19
19 + -1a + 2a = 12

Combine like terms: -1a + 2a = 1a
19 + 1a = 12

Solving
19 + 1a = 12

Solving for variable 'a'.

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

Add '-19' to each side of the equation.
19 + -19 + 1a = 12 + -19

Combine like terms: 19 + -19 = 0
0 + 1a = 12 + -19
1a = 12 + -19

Combine like terms: 12 + -19 = -7
1a = -7

Divide each side by '1'.
a = -7

Simplifying
a = -7

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