4+0.3(4-y)=1.7y-3(y-0.9)

Solution for 4+0.3(4-y)=1.7y-3(y-0.9) equation:

4+0.3(4-y)=1.7y-3(y-0.9)

We move all terms to the left:

4+0.3(4-y)-(1.7y-3(y-0.9))=0

We add all the numbers together, and all the variables

0.3(-1y+4)-(1.7y-3(y-0.9))+4=0

We multiply parentheses

-0.3y-(1.7y-3(y-0.9))+1.2+4=0


We calculate terms in parentheses: -(1.7y-3(y-0.9)), so:

1.7y-3(y-0.9)

We multiply parentheses

1.7y-3y+2.7

We add all the numbers together, and all the variables

-1.3y+2.7

Back to the equation:

-(-1.3y+2.7)


We add all the numbers together, and all the variables

-0.3y-(-1.3y+2.7)+5.2=0

We get rid of parentheses

-0.3y+1.3y-2.7+5.2=0

We add all the numbers together, and all the variables

y+2.5=0

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

y=-2.5