5a-3(a-4)=18

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Solution for 5a-3(a-4)=18 equation: 



5a-3(a-4)=18

We move all terms to the left:

5a-3(a-4)-(18)=0

We multiply parentheses

5a-3a+12-18=0

We add all the numbers together, and all the variables

2a-6=0

We move all terms containing a to the left, all other terms to the right

2a=6

a=6/2

a=3

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