3r+8=20

Simple and best practice solution for 3r+8=20 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 3r+8=20 equation: 


Simplifying
3r + 8 = 20

Reorder the terms:
8 + 3r = 20

Solving
8 + 3r = 20

Solving for variable 'r'.

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

Add '-8' to each side of the equation.
8 + -8 + 3r = 20 + -8

Combine like terms: 8 + -8 = 0
0 + 3r = 20 + -8
3r = 20 + -8

Combine like terms: 20 + -8 = 12
3r = 12

Divide each side by '3'.
r = 4

Simplifying
r = 4

See similar equations:

| 4*(x+2)=18 | | -17=p+3-3p | | 9y-12-4y+9=0 | | 12+9x-6x-19= | | c(c-5)=14 | | 8y-14-4y+9=0 | | 5.3=z-2.7 | | 4x=x-25 | | 6(w+1)=2(w+5) | | 4-3x-10=-18 | | -6(1-5x)+x=2x-35 | | a^2+30a-4000=0 | | 11/x+5/x=4 | | 6(5x-5)+3(16-3x)-4(5x+1)=-1 | | 2(3x-5)-8=8 | | 11d+5f-21d+5-8= | | -2(1-7r)=-86 | | 10(-6+x)=-10 | | 1/2(20)(28) | | 5x+25=5x+9 | | 2(3m-5)=-28 | | 0.3x+1.7=1.7 | | x+0.2x=7.2 | | 3x+7=23-2x | | 0.25x=2 | | 3mn+4m-2mn= | | 8r-5r+4=6r-r | | 50+40=200+4x | | 11q+5p-9q+7p= | | -(5y+4)-(-4y-6)=-2 | | 4y-30+2y=18 | | 2(b+3)-(8+b)=3 |

Equations solver categories