3a+30-12=75

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Solution for 3a+30-12=75 equation:


Simplifying
3a + 30 + -12 = 75

Reorder the terms:
30 + -12 + 3a = 75

Combine like terms: 30 + -12 = 18
18 + 3a = 75

Solving
18 + 3a = 75

Solving for variable 'a'.

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

Add '-18' to each side of the equation.
18 + -18 + 3a = 75 + -18

Combine like terms: 18 + -18 = 0
0 + 3a = 75 + -18
3a = 75 + -18

Combine like terms: 75 + -18 = 57
3a = 57

Divide each side by '3'.
a = 19

Simplifying
a = 19

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