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2.05x+2.20(440-x)=7489.50
We move all terms to the left:
2.05x+2.20(440-x)-(7489.50)=0
We add all the numbers together, and all the variables
2.05x+2.20(-1x+440)-(7489.5)=0
We add all the numbers together, and all the variables
2.05x+2.20(-1x+440)-7489.5=0
We multiply parentheses
2.05x-2.2x+968-7489.5=0
We add all the numbers together, and all the variables
-0.15x-6521.5=0
We move all terms containing x to the left, all other terms to the right
-0.15x=6521.5
x=6521.5/-0.15
x=-43476+0.1/0.15
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