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0.4y-4=2*
We move all terms to the left:
0.4y-4-(2*)=0
We add all the numbers together, and all the variables
0.4y-4-0=0
We add all the numbers together, and all the variables
0.4y-4=0
We move all terms containing y to the left, all other terms to the right
0.4y=4
y=4/0.4
y=10
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