21=8y-y

Simple and best practice solution for 21=8y-y 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=8y-y equation:


Simplifying
21 = 8y + -1y

Combine like terms: 8y + -1y = 7y
21 = 7y

Solving
21 = 7y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-7y' to each side of the equation.
21 + -7y = 7y + -7y

Combine like terms: 7y + -7y = 0
21 + -7y = 0

Add '-21' to each side of the equation.
21 + -21 + -7y = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7y = 0 + -21
-7y = 0 + -21

Combine like terms: 0 + -21 = -21
-7y = -21

Divide each side by '-7'.
y = 3

Simplifying
y = 3

See similar equations:

| 5x+6=-106-9 | | -72+5x+x=30 | | 3x*2-2= | | 16x+48=32+48 | | 45=2w+3w | | (1/3)-(8/25y)=(8/25)-(1/15y) | | 3(3x+16)-17x=40 | | f*12.3=-73.8 | | 13x-6x=49 | | 5x-x=3x+12 | | 6=4/5m | | 1/25-4z^2 | | x/5=120/3 | | -58=-5x+x-10 | | t/5-4=7 | | 2x(-12)+9=-5x(8)-7 | | (7a+8)(5a+8)=0 | | 17y-8y=72 | | -2x+10x-100=116 | | 3x-1=89 | | c=-5 | | X-16=(-9) | | -6-[-1]= | | 7/3(1/2v-10/3)=-35/3-1/2v | | 4.905t^2-124.36t-120=0 | | -32-32-32-32-32= | | 16/60=10x/60 | | -3+[-6]= | | 2(x+2)+5x=-24 | | (1/3)-(3/4x)=(1/4)-(1/6x) | | -32x-32x-32x-32x-32= | | 7=5+k |

Equations solver categories