4(-0.8+0.9y)+3y=-1

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Solution for 4(-0.8+0.9y)+3y=-1 equation: 



4(-0.8+0.9y)+3y=-1

We move all terms to the left:

4(-0.8+0.9y)+3y-(-1)=0

We add all the numbers together, and all the variables

4(0.9y-0.8)+3y-(-1)=0

We add all the numbers together, and all the variables

3y+4(0.9y-0.8)+1=0

We multiply parentheses

3y+0y-3.2+1=0

We add all the numbers together, and all the variables

4y-2.2=0

We move all terms containing y to the left, all other terms to the right

4y=2.2

y=2.2/4

y=1/1.81818181818

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