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

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


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

Reorder the terms:
2 + -2(2 + a) = 7 + a
2 + (2 * -2 + a * -2) = 7 + a
2 + (-4 + -2a) = 7 + a

Combine like terms: 2 + -4 = -2
-2 + -2a = 7 + a

Solving
-2 + -2a = 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.
-2 + -2a + -1a = 7 + a + -1a

Combine like terms: -2a + -1a = -3a
-2 + -3a = 7 + a + -1a

Combine like terms: a + -1a = 0
-2 + -3a = 7 + 0
-2 + -3a = 7

Add '2' to each side of the equation.
-2 + 2 + -3a = 7 + 2

Combine like terms: -2 + 2 = 0
0 + -3a = 7 + 2
-3a = 7 + 2

Combine like terms: 7 + 2 = 9
-3a = 9

Divide each side by '-3'.
a = -3

Simplifying
a = -3

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