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

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


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

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

Combine like terms: 5 + -14 = -9
-9 + -7a = 7 + a

Solving
-9 + -7a = 7 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-9 + -7a + -1a = 7 + a + -1a

Combine like terms: -7a + -1a = -8a
-9 + -8a = 7 + a + -1a

Combine like terms: a + -1a = 0
-9 + -8a = 7 + 0
-9 + -8a = 7

Add '9' to each side of the equation.
-9 + 9 + -8a = 7 + 9

Combine like terms: -9 + 9 = 0
0 + -8a = 7 + 9
-8a = 7 + 9

Combine like terms: 7 + 9 = 16
-8a = 16

Divide each side by '-8'.
a = -2

Simplifying
a = -2

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