21=3(y-8)

Simple and best practice solution for 21=3(y-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 21=3(y-8) equation: 


Simplifying
21 = 3(y + -8)

Reorder the terms:
21 = 3(-8 + y)
21 = (-8 * 3 + y * 3)
21 = (-24 + 3y)

Solving
21 = -24 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
21 + -3y = -24 + 3y + -3y

Combine like terms: 3y + -3y = 0
21 + -3y = -24 + 0
21 + -3y = -24

Add '-21' to each side of the equation.
21 + -21 + -3y = -24 + -21

Combine like terms: 21 + -21 = 0
0 + -3y = -24 + -21
-3y = -24 + -21

Combine like terms: -24 + -21 = -45
-3y = -45

Divide each side by '-3'.
y = 15

Simplifying
y = 15

See similar equations:

| N^2-12n=6 | | Ln(2x-3)=17 | | 2x^3+16x^2+30=0x | | g/3=99.99 | | -6+5y=-16 | | -2x+5(3x-11)=-16 | | m-5=27 | | 96x+128+0=0 | | 1.666666667+2.6= | | 3(5-2)=4 | | 5x-4-2x+1=8c+2 | | 3x-3+x=13 | | -16x^2+24x+7=10 | | -1x+2=-1.1667x-0.1667 | | 3x+4(2x-1)=18 | | x^2-7x+204=0 | | 13x-3x=100 | | 2(x-2)+6=8 | | 4x^5-100x^3= | | 3*g=12 | | 6x+3y=6x-2y+2 | | b/4= | | -x^2-5x-8=0 | | 15x-8=3x+3x+109 | | -7*2/-9*-3/4 | | 15x-8=3x | | 25+y= | | 10x-7y=-1 | | 1/×-8 | | -4v+16=4(v-4) | | 1/8×-8 | | 12x=-5x-153 |

Equations solver categories