20a+12a-8=80

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Solution for 20a+12a-8=80 equation:


Simplifying
20a + 12a + -8 = 80

Reorder the terms:
-8 + 20a + 12a = 80

Combine like terms: 20a + 12a = 32a
-8 + 32a = 80

Solving
-8 + 32a = 80

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + 32a = 80 + 8

Combine like terms: -8 + 8 = 0
0 + 32a = 80 + 8
32a = 80 + 8

Combine like terms: 80 + 8 = 88
32a = 88

Divide each side by '32'.
a = 2.75

Simplifying
a = 2.75

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