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2.8(10+x)=22/5
We move all terms to the left:
2.8(10+x)-(22/5)=0
We add all the numbers together, and all the variables
2.8(x+10)-(+22/5)=0
We multiply parentheses
2.8x+28-(+22/5)=0
We get rid of parentheses
2.8x+28-22/5=0
We multiply all the terms by the denominator
(2.8x)*5-22+28*5=0
We add all the numbers together, and all the variables
(+2.8x)*5-22+28*5=0
We add all the numbers together, and all the variables
(+2.8x)*5+118=0
We multiply parentheses
10x+118=0
We move all terms containing x to the left, all other terms to the right
10x=-118
x=-118/10
x=-11+4/5
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