21-3y=4y

Simple and best practice solution for 21-3y=4y 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 21-3y=4y equation:


Simplifying
21 + -3y = 4y

Solving
21 + -3y = 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 + -3y + -4y = 4y + -4y

Combine like terms: -3y + -4y = -7y
21 + -7y = 4y + -4y

Combine like terms: 4y + -4y = 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:

| .4y-8=9-.6y | | -25=y-6 | | .667n+8=.5n+2 | | 6x+3x-4x= | | .29n+8=.5n+2 | | 2m^2+19m=-35 | | 6xn+3=27 | | 4.4m+6.2=8.8-1.8 | | (2m-7)(m+3)=0 | | 13x^2+5x-5=0 | | 2x+3=7x+5 | | y^2-y-18=-2y-6 | | 2x-3+5x=3 | | 9x+(-5)=8x | | (3x-2)-2(x+4)=7 | | 9x+2=110 | | 21-6p=3p-2p | | v^2+7v+10=0 | | 3p-11=5(p-1)-2(7-2p) | | 45+85= | | 8x+70=3x+130 | | (4+z)(3z-5)=0 | | -7t+4=10t-14 | | x(0.05)+x=10 | | 3x+20=44 | | -13+p=0 | | k+4=8 | | -7(-7+3m)+1= | | 4+4+2+8=3 | | X-39=18 | | 4+8(-2n+3)= | | y=6(2) |

Equations solver categories