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0.4(3x+4)=-3
We move all terms to the left:
0.4(3x+4)-(-3)=0
We add all the numbers together, and all the variables
0.4(3x+4)+3=0
We multiply parentheses
1.2x+1.6+3=0
We add all the numbers together, and all the variables
1.2x+4.6=0
We move all terms containing x to the left, all other terms to the right
1.2x=-4.6
x=-4.6/1.2
x=-3+1/1.2
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