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3(4x+3)=1.89
We move all terms to the left:
3(4x+3)-(1.89)=0
We add all the numbers together, and all the variables
3(4x+3)-1.89=0
We multiply parentheses
12x+9-1.89=0
We add all the numbers together, and all the variables
12x+7.11=0
We move all terms containing x to the left, all other terms to the right
12x=-7.11
x=-7.11/12
x=-6.40540540541/10.8108108108
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