81=12r+36

Simple and best practice solution for 81=12r+36 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 81=12r+36 equation:


Simplifying
81 = 12r + 36

Reorder the terms:
81 = 36 + 12r

Solving
81 = 36 + 12r

Solving for variable 'r'.

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

Add '-12r' to each side of the equation.
81 + -12r = 36 + 12r + -12r

Combine like terms: 12r + -12r = 0
81 + -12r = 36 + 0
81 + -12r = 36

Add '-81' to each side of the equation.
81 + -81 + -12r = 36 + -81

Combine like terms: 81 + -81 = 0
0 + -12r = 36 + -81
-12r = 36 + -81

Combine like terms: 36 + -81 = -45
-12r = -45

Divide each side by '-12'.
r = 3.75

Simplifying
r = 3.75

See similar equations:

| 6x^2+8x=146 | | 0=-16x^2+32x+48 | | 4x+19=12x-77 | | x*10+16=x*2+152 | | x=34+(34*0.6) | | x-10(-6x+4)=6-[-(6x-2)+10(2-4x)] | | 4x+19=12x-59 | | 4x-11=-2x+3 | | 2x+5z-67y=5y+298x-6z | | 6-y=20 | | 26x-4=133x-362 | | 4x=8y+12 | | 6c+4c=30 | | 7x-1=210-13x-4 | | u^3+6u=4u+24 | | 20-4y=10-6y | | 142-5x=4x+16 | | 4bb=36 | | 6x-(7+2x)=4x+3-(x-7) | | 1.8-x=7 | | 2x^2y-7y^2w+8xw=0 | | 12x-9=135 | | 6z-15=4z+11 | | x^2+4x-132=0 | | 6a^2b^2-7ab^3-5b^4=0 | | -1.8-x=1.2 | | 18(a+2)= | | 3-5m+4+m=10 | | y^2-12y+32=0 | | 9a^2b-30ab^2+25b^3=0 | | 3y-7x=35 | | y=(3)(-2)-4 |

Equations solver categories