-12=r-20

Simple and best practice solution for -12=r-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 -12=r-20 equation:


Simplifying
-12 = r + -20

Reorder the terms:
-12 = -20 + r

Solving
-12 = -20 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-12 + -1r = -20 + r + -1r

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

Add '12' to each side of the equation.
-12 + 12 + -1r = -20 + 12

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

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

Divide each side by '-1'.
r = 8

Simplifying
r = 8

See similar equations:

| x*5+6=15 | | x=3x+24 | | y-1.4=7 | | y-104=7 | | 4x*5+8=56 | | x-19/2=19/6 | | 6x-33.5=x | | x*4-5=4 | | -.8333w=0.6 | | -3x+8=-5x+2x+8 | | x=3x+14 | | 11(4-6z)+5(13z+1)=9 | | B=40X-(1650+3X+0.2X^2) | | x^2=166 | | 9-5x=3x+91 | | 3x*2-26=31 | | 3x+4x-6=-20 | | 230+8+1/3= | | 17x+15=3x+135 | | 16p+8=2(8+4) | | x*2+5=9 | | .5m=2.5 | | 4(4m-3)=6m | | 1/5+1/10= | | (3x-4)(x^2-3x+3)= | | x*5+9=42 | | 8/10*45/150= | | .5m=5 | | m+m=28-5m | | x^2-14x-7=0 | | 87-3x=15x+17 | | 18x^2-25x=0 |

Equations solver categories