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-2.1+7.5(4.7-4.6x)=143.55
We move all terms to the left:
-2.1+7.5(4.7-4.6x)-(143.55)=0
We add all the numbers together, and all the variables
7.5(-4.6x+4.7)-2.1-(143.55)=0
We add all the numbers together, and all the variables
7.5(-4.6x+4.7)-145.65=0
We multiply parentheses
-30x+35.25-145.65=0
We add all the numbers together, and all the variables
-30x-110.4=0
We move all terms containing x to the left, all other terms to the right
-30x=110.4
x=110.4/-30
x=-3+1.9615384615385/2.8846153846154
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