-16=6(1+5a)+7(8-8a)

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Solution for -16=6(1+5a)+7(8-8a) equation:


Simplifying
-16 = 6(1 + 5a) + 7(8 + -8a)
-16 = (1 * 6 + 5a * 6) + 7(8 + -8a)
-16 = (6 + 30a) + 7(8 + -8a)
-16 = 6 + 30a + (8 * 7 + -8a * 7)
-16 = 6 + 30a + (56 + -56a)

Reorder the terms:
-16 = 6 + 56 + 30a + -56a

Combine like terms: 6 + 56 = 62
-16 = 62 + 30a + -56a

Combine like terms: 30a + -56a = -26a
-16 = 62 + -26a

Solving
-16 = 62 + -26a

Solving for variable 'a'.

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

Add '26a' to each side of the equation.
-16 + 26a = 62 + -26a + 26a

Combine like terms: -26a + 26a = 0
-16 + 26a = 62 + 0
-16 + 26a = 62

Add '16' to each side of the equation.
-16 + 16 + 26a = 62 + 16

Combine like terms: -16 + 16 = 0
0 + 26a = 62 + 16
26a = 62 + 16

Combine like terms: 62 + 16 = 78
26a = 78

Divide each side by '26'.
a = 3

Simplifying
a = 3

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