-5(2-2a)-(8+a)=9

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Solution for -5(2-2a)-(8+a)=9 equation:


Simplifying
-5(2 + -2a) + -1(8 + a) = 9
(2 * -5 + -2a * -5) + -1(8 + a) = 9
(-10 + 10a) + -1(8 + a) = 9
-10 + 10a + (8 * -1 + a * -1) = 9
-10 + 10a + (-8 + -1a) = 9

Reorder the terms:
-10 + -8 + 10a + -1a = 9

Combine like terms: -10 + -8 = -18
-18 + 10a + -1a = 9

Combine like terms: 10a + -1a = 9a
-18 + 9a = 9

Solving
-18 + 9a = 9

Solving for variable 'a'.

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

Add '18' to each side of the equation.
-18 + 18 + 9a = 9 + 18

Combine like terms: -18 + 18 = 0
0 + 9a = 9 + 18
9a = 9 + 18

Combine like terms: 9 + 18 = 27
9a = 27

Divide each side by '9'.
a = 3

Simplifying
a = 3

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