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2(b+1.4)=8.4
We move all terms to the left:
2(b+1.4)-(8.4)=0
We add all the numbers together, and all the variables
2(b+1.4)-8.4=0
We multiply parentheses
2b+2.8-8.4=0
We add all the numbers together, and all the variables
2b-5.6=0
We move all terms containing b to the left, all other terms to the right
2b=5.6
b=5.6/2
b=2+1/1.25
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