3(a-6)=30

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Solution for 3(a-6)=30 equation: 


Simplifying
3(a + -6) = 30

Reorder the terms:
3(-6 + a) = 30
(-6 * 3 + a * 3) = 30
(-18 + 3a) = 30

Solving
-18 + 3a = 30

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 = 30 + 18

Combine like terms: -18 + 18 = 0
0 + 3a = 30 + 18
3a = 30 + 18

Combine like terms: 30 + 18 = 48
3a = 48

Divide each side by '3'.
a = 16

Simplifying
a = 16

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