8(6a-4)-4(7a+2)=20

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Solution for 8(6a-4)-4(7a+2)=20 equation:


Simplifying
8(6a + -4) + -4(7a + 2) = 20

Reorder the terms:
8(-4 + 6a) + -4(7a + 2) = 20
(-4 * 8 + 6a * 8) + -4(7a + 2) = 20
(-32 + 48a) + -4(7a + 2) = 20

Reorder the terms:
-32 + 48a + -4(2 + 7a) = 20
-32 + 48a + (2 * -4 + 7a * -4) = 20
-32 + 48a + (-8 + -28a) = 20

Reorder the terms:
-32 + -8 + 48a + -28a = 20

Combine like terms: -32 + -8 = -40
-40 + 48a + -28a = 20

Combine like terms: 48a + -28a = 20a
-40 + 20a = 20

Solving
-40 + 20a = 20

Solving for variable 'a'.

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

Add '40' to each side of the equation.
-40 + 40 + 20a = 20 + 40

Combine like terms: -40 + 40 = 0
0 + 20a = 20 + 40
20a = 20 + 40

Combine like terms: 20 + 40 = 60
20a = 60

Divide each side by '20'.
a = 3

Simplifying
a = 3

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