1r-8-12=

Simple and best practice solution for 1r-8-12= 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 1r-8-12= equation:


Simplifying
1r + -8 + -12 = 0

Reorder the terms:
-8 + -12 + 1r = 0

Combine like terms: -8 + -12 = -20
-20 + 1r = 0

Solving
-20 + 1r = 0

Solving for variable 'r'.

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

Add '20' to each side of the equation.
-20 + 20 + 1r = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 1r = 0 + 20
1r = 0 + 20

Combine like terms: 0 + 20 = 20
1r = 20

Divide each side by '1'.
r = 20

Simplifying
r = 20

See similar equations:

| 20x^2-4x-3=0 | | 3x+32=50 | | 11x^2+3=20x^2-3 | | n/9-4=2 | | x-14/6=1 | | 8b-3b+2=3-9b+7 | | 87=11x/2 | | 87=11k/2 | | 59=x+32 | | 2x-4=11x-40 | | 4x-5=12x-47 | | 7x^3-13x^2-2x=0 | | x=-8y+13 | | 7n+10=52 | | f(x+4)=x^2-4x+2 | | 63-6x=3x+21 | | 64=4x | | 5x^3-19x^2-4x=0 | | -2z-16=2z | | 7-10x=71-24x | | e^2-2e=0 | | 6n+7=19 | | 13y-18=8 | | 2x^2=-200 | | 4(x+1)=x+19 | | -5k+7=-20+4k | | (n-5)*7=28 | | (n-5)*7=28 | | 3n/2=12 | | 7(1)-3Y=10 | | (9-5)*7=28 | | 75-2x=10x-15 |

Equations solver categories