3(a-1)=54

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Solution for 3(a-1)=54 equation: 


Simplifying
3(a + -1) = 54

Reorder the terms:
3(-1 + a) = 54
(-1 * 3 + a * 3) = 54
(-3 + 3a) = 54

Solving
-3 + 3a = 54

Solving for variable 'a'.

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

Add '3' to each side of the equation.
-3 + 3 + 3a = 54 + 3

Combine like terms: -3 + 3 = 0
0 + 3a = 54 + 3
3a = 54 + 3

Combine like terms: 54 + 3 = 57
3a = 57

Divide each side by '3'.
a = 19

Simplifying
a = 19

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