21=7y+4(y-3)

Simple and best practice solution for 21=7y+4(y-3) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 21=7y+4(y-3) equation: 



21=7y+4(y-3)

We move all terms to the left:

21-(7y+4(y-3))=0



We calculate terms in parentheses: -(7y+4(y-3)), so:

7y+4(y-3)

We multiply parentheses

7y+4y-12

We add all the numbers together, and all the variables

11y-12

Back to the equation:

-(11y-12)



We get rid of parentheses

-11y+12+21=0

We add all the numbers together, and all the variables

-11y+33=0

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

-11y=-33

y=-33/-11

y=+3

See similar equations:

| 3.4=-3x+10.9 | | (5x+17)+115=180 | | -y+171=3 | | 178=-v+30 | | 93x+45=3 | | 97b+6=7 | | -2x+4(x-2)=6 | | 30=-6w+2(w+7) | | 3(y-3)+6y=-18 | | 13x+11+6x+2=180 | | 20=4.9x-38 | | 26x=26x+30 | | 147.000=4.9x-38 | | u8=10.24 | | y=-0.2(6.000)+20.000 | | 15.500=-0.2x+20 | | 84=-3b | | 16m+4=-12 | | 12x-24=3x+6=6x-12 | | 68x+27=180 | | -3(r-(5))=-27 | | 13.27=t24.45 | | 0=68t-4.9t^2 | | -5(-4+3x)=3(5x-4) | | 2(5x+2)+1=35 | | .3x-7=2x | | (x-3)+4x=20 | | 3x-(1-2)=19 | | -8=-4(h-15) | | 958-a=821 | | 30.5=2w | | 31=1/2+2w |

Equations solver categories