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-2.1(0.3y+2.4)+1.7(2.1-1.3y)=7.05
We move all terms to the left:
-2.1(0.3y+2.4)+1.7(2.1-1.3y)-(7.05)=0
We add all the numbers together, and all the variables
-2.1(0.3y+2.4)+1.7(-1.3y+2.1)-(7.05)=0
We add all the numbers together, and all the variables
-2.1(0.3y+2.4)+1.7(-1.3y+2.1)-7.05=0
We multiply parentheses
-0y-1.7y-5.04+3.57-7.05=0
We add all the numbers together, and all the variables
-2.7y-8.52=0
We move all terms containing y to the left, all other terms to the right
-2.7y=8.52
y=8.52/-2.7
y=-3+0.42/2.7
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