3.9=1.3-0.5y

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Solution for 3.9=1.3-0.5y equation:



3.9=1.3-0.5y
We move all terms to the left:
3.9-(1.3-0.5y)=0
We add all the numbers together, and all the variables
-(-0.5y+1.3)+3.9=0
We get rid of parentheses
0.5y-1.3+3.9=0
We add all the numbers together, and all the variables
0.5y+2.6=0
We move all terms containing y to the left, all other terms to the right
0.5y=-2.6
y=-2.6/0.5
y=-5+0.1/0.5

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