20a+30=180

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Solution for 20a+30=180 equation: 


Simplifying
20a + 30 = 180

Reorder the terms:
30 + 20a = 180

Solving
30 + 20a = 180

Solving for variable 'a'.

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

Add '-30' to each side of the equation.
30 + -30 + 20a = 180 + -30

Combine like terms: 30 + -30 = 0
0 + 20a = 180 + -30
20a = 180 + -30

Combine like terms: 180 + -30 = 150
20a = 150

Divide each side by '20'.
a = 7.5

Simplifying
a = 7.5

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