-7(a+8)+4(-a-4)=-3a-2a

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Solution for -7(a+8)+4(-a-4)=-3a-2a equation:


Simplifying
-7(a + 8) + 4(-1a + -4) = -3a + -2a

Reorder the terms:
-7(8 + a) + 4(-1a + -4) = -3a + -2a
(8 * -7 + a * -7) + 4(-1a + -4) = -3a + -2a
(-56 + -7a) + 4(-1a + -4) = -3a + -2a

Reorder the terms:
-56 + -7a + 4(-4 + -1a) = -3a + -2a
-56 + -7a + (-4 * 4 + -1a * 4) = -3a + -2a
-56 + -7a + (-16 + -4a) = -3a + -2a

Reorder the terms:
-56 + -16 + -7a + -4a = -3a + -2a

Combine like terms: -56 + -16 = -72
-72 + -7a + -4a = -3a + -2a

Combine like terms: -7a + -4a = -11a
-72 + -11a = -3a + -2a

Combine like terms: -3a + -2a = -5a
-72 + -11a = -5a

Solving
-72 + -11a = -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
-72 + -11a + 5a = -5a + 5a

Combine like terms: -11a + 5a = -6a
-72 + -6a = -5a + 5a

Combine like terms: -5a + 5a = 0
-72 + -6a = 0

Add '72' to each side of the equation.
-72 + 72 + -6a = 0 + 72

Combine like terms: -72 + 72 = 0
0 + -6a = 0 + 72
-6a = 0 + 72

Combine like terms: 0 + 72 = 72
-6a = 72

Divide each side by '-6'.
a = -12

Simplifying
a = -12

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