21+3y-3=12y-12-4y

Simple and best practice solution for 21+3y-3=12y-12-4y 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-3=12y-12-4y equation:


Simplifying
21 + 3y + -3 = 12y + -12 + -4y

Reorder the terms:
21 + -3 + 3y = 12y + -12 + -4y

Combine like terms: 21 + -3 = 18
18 + 3y = 12y + -12 + -4y

Reorder the terms:
18 + 3y = -12 + 12y + -4y

Combine like terms: 12y + -4y = 8y
18 + 3y = -12 + 8y

Solving
18 + 3y = -12 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
18 + 3y + -8y = -12 + 8y + -8y

Combine like terms: 3y + -8y = -5y
18 + -5y = -12 + 8y + -8y

Combine like terms: 8y + -8y = 0
18 + -5y = -12 + 0
18 + -5y = -12

Add '-18' to each side of the equation.
18 + -18 + -5y = -12 + -18

Combine like terms: 18 + -18 = 0
0 + -5y = -12 + -18
-5y = -12 + -18

Combine like terms: -12 + -18 = -30
-5y = -30

Divide each side by '-5'.
y = 6

Simplifying
y = 6

See similar equations:

| -3.5w+0.1=0.2w-3.6 | | a^2=-12a | | 9+ln(20x)=17-2ln(x) | | 6y+3=4y+11 | | -6(-3w+6)-3w=6(w-2)-9 | | 2k^2+12k-70=-2 | | 2cos^2-3cosx=0 | | 2(x+3+7)=x | | 2x+6=4x-28 | | (3z-2)(4-z)=0 | | 11/13=9/u | | x((y+3)(y-3))+6=0 | | (3x+3)x=6 | | 40+x+2y=180 | | 2x+0.9=3x-3.1 | | 2(v+5)=-2(7v-4)+8v | | 4.5x+7=25 | | 8u+16=-4(-2u-4) | | 2(v+5)=-2(7v-4) | | y=dx+n | | X-0.21x=506.00 | | 0.2x-6=-5.8x+6 | | 4(4x-5)+11x= | | 3-3/y=4 | | 4(x+2)=5(9+2x)-6x | | 3/12=w/8 | | 3x/5-x=x/10-3/2= | | u^2-50u+49=0 | | 3/6=w/8 | | p=2(x+3+7) | | -(z+0.66)=z | | by-ry=t |

Equations solver categories