8(2-2a)+4(1-5a)=56

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Solution for 8(2-2a)+4(1-5a)=56 equation: 


Simplifying
8(2 + -2a) + 4(1 + -5a) = 56
(2 * 8 + -2a * 8) + 4(1 + -5a) = 56
(16 + -16a) + 4(1 + -5a) = 56
16 + -16a + (1 * 4 + -5a * 4) = 56
16 + -16a + (4 + -20a) = 56

Reorder the terms:
16 + 4 + -16a + -20a = 56

Combine like terms: 16 + 4 = 20
20 + -16a + -20a = 56

Combine like terms: -16a + -20a = -36a
20 + -36a = 56

Solving
20 + -36a = 56

Solving for variable 'a'.

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

Add '-20' to each side of the equation.
20 + -20 + -36a = 56 + -20

Combine like terms: 20 + -20 = 0
0 + -36a = 56 + -20
-36a = 56 + -20

Combine like terms: 56 + -20 = 36
-36a = 36

Divide each side by '-36'.
a = -1

Simplifying
a = -1

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