-74=2(1+3a)+8(1-6a)

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Solution for -74=2(1+3a)+8(1-6a) equation:


Simplifying
-74 = 2(1 + 3a) + 8(1 + -6a)
-74 = (1 * 2 + 3a * 2) + 8(1 + -6a)
-74 = (2 + 6a) + 8(1 + -6a)
-74 = 2 + 6a + (1 * 8 + -6a * 8)
-74 = 2 + 6a + (8 + -48a)

Reorder the terms:
-74 = 2 + 8 + 6a + -48a

Combine like terms: 2 + 8 = 10
-74 = 10 + 6a + -48a

Combine like terms: 6a + -48a = -42a
-74 = 10 + -42a

Solving
-74 = 10 + -42a

Solving for variable 'a'.

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

Add '42a' to each side of the equation.
-74 + 42a = 10 + -42a + 42a

Combine like terms: -42a + 42a = 0
-74 + 42a = 10 + 0
-74 + 42a = 10

Add '74' to each side of the equation.
-74 + 74 + 42a = 10 + 74

Combine like terms: -74 + 74 = 0
0 + 42a = 10 + 74
42a = 10 + 74

Combine like terms: 10 + 74 = 84
42a = 84

Divide each side by '42'.
a = 2

Simplifying
a = 2

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