12-3(x-4)=9

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Solution for 12-3(x-4)=9 equation:



12-3(x-4)=9
We move all terms to the left:
12-3(x-4)-(9)=0
We add all the numbers together, and all the variables
-3(x-4)+3=0
We multiply parentheses
-3x+12+3=0
We add all the numbers together, and all the variables
-3x+15=0
We move all terms containing x to the left, all other terms to the right
-3x=-15
x=-15/-3
x=+5

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