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1.4(x+3)=42
We move all terms to the left:
1.4(x+3)-(42)=0
We multiply parentheses
1.4x+4.2-42=0
We add all the numbers together, and all the variables
1.4x-37.8=0
We move all terms containing x to the left, all other terms to the right
1.4x=37.8
x=37.8/1.4
x=27
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