y+21=4y-8

Simple and best practice solution for y+21=4y-8 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 y+21=4y-8 equation:


Simplifying
y + 21 = 4y + -8

Reorder the terms:
21 + y = 4y + -8

Reorder the terms:
21 + y = -8 + 4y

Solving
21 + y = -8 + 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
21 + y + -4y = -8 + 4y + -4y

Combine like terms: y + -4y = -3y
21 + -3y = -8 + 4y + -4y

Combine like terms: 4y + -4y = 0
21 + -3y = -8 + 0
21 + -3y = -8

Add '-21' to each side of the equation.
21 + -21 + -3y = -8 + -21

Combine like terms: 21 + -21 = 0
0 + -3y = -8 + -21
-3y = -8 + -21

Combine like terms: -8 + -21 = -29
-3y = -29

Divide each side by '-3'.
y = 9.666666667

Simplifying
y = 9.666666667

See similar equations:

| 5x=8x-3(x+2) | | -5b+14=-66 | | 2+11(4.33)=8(4.33)+15 | | 2=1-k/12 | | -2x+4*2=6 | | 3g+4(15+5g)=1-g | | -1+x/11=2 | | ax=2f-3b | | -15x^2+22x=-5 | | 5x=x+8 | | 20=12x+12 | | 6x+10/5=-4 | | 2+s=s+6 | | C=3*3.14r | | 2(n+0.1)=2n | | 2x-2x=-7 | | 10x^4-17x^3+13x^2+33x-7=0 | | 60=10+5ln(3x+7) | | 5x-32=5x+28 | | 2x+3=7-x | | 50=x/15-10 | | 2x+56=35 | | x^2-16xy+64y^2=0 | | 2kx^2-4kx+1=f(x) | | 5(2+y)-v=10+4(v+1) | | -2(5a+6)=-3(3a+8) | | 4kx^2-4kx+1=f(x) | | 7y-4=5.33 | | 2?(-64)= | | 2k+6(-3k-7)= | | 18+9y=36 | | 21(x)= |

Equations solver categories