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10.2x+2/5=-7
We move all terms to the left:
10.2x+2/5-(-7)=0
We add all the numbers together, and all the variables
10.2x+7+2/5=0
We multiply all the terms by the denominator
(10.2x)*5+2+7*5=0
We add all the numbers together, and all the variables
(+10.2x)*5+2+7*5=0
We add all the numbers together, and all the variables
(+10.2x)*5+37=0
We multiply parentheses
50x+37=0
We move all terms containing x to the left, all other terms to the right
50x=-37
x=-37/50
x=-37/50
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