8-2(a+2)=a+7

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Solution for 8-2(a+2)=a+7 equation:


Simplifying
8 + -2(a + 2) = a + 7

Reorder the terms:
8 + -2(2 + a) = a + 7
8 + (2 * -2 + a * -2) = a + 7
8 + (-4 + -2a) = a + 7

Combine like terms: 8 + -4 = 4
4 + -2a = a + 7

Reorder the terms:
4 + -2a = 7 + a

Solving
4 + -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.
4 + -2a + -1a = 7 + a + -1a

Combine like terms: -2a + -1a = -3a
4 + -3a = 7 + a + -1a

Combine like terms: a + -1a = 0
4 + -3a = 7 + 0
4 + -3a = 7

Add '-4' to each side of the equation.
4 + -4 + -3a = 7 + -4

Combine like terms: 4 + -4 = 0
0 + -3a = 7 + -4
-3a = 7 + -4

Combine like terms: 7 + -4 = 3
-3a = 3

Divide each side by '-3'.
a = -1

Simplifying
a = -1

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