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1.3(8-b)+3.7(b)=-5.2
We move all terms to the left:
1.3(8-b)+3.7(b)-(-5.2)=0
We add all the numbers together, and all the variables
1.3(-1b+8)+3.7b-(-5.2)=0
We add all the numbers together, and all the variables
3.7b+1.3(-1b+8)+5.2=0
We multiply parentheses
3.7b-1.3b+10.4+5.2=0
We add all the numbers together, and all the variables
2.4b+15.6=0
We move all terms containing b to the left, all other terms to the right
2.4b=-15.6
b=-15.6/2.4
b=-6+1/2
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