4(a+30)=20

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Solution for 4(a+30)=20 equation: 


Simplifying
4(a + 30) = 20

Reorder the terms:
4(30 + a) = 20
(30 * 4 + a * 4) = 20
(120 + 4a) = 20

Solving
120 + 4a = 20

Solving for variable 'a'.

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

Add '-120' to each side of the equation.
120 + -120 + 4a = 20 + -120

Combine like terms: 120 + -120 = 0
0 + 4a = 20 + -120
4a = 20 + -120

Combine like terms: 20 + -120 = -100
4a = -100

Divide each side by '4'.
a = -25

Simplifying
a = -25

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