13-r=15

Simple and best practice solution for 13-r=15 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 13-r=15 equation: 


Simplifying
13 + -1r = 15

Solving
13 + -1r = 15

Solving for variable 'r'.

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

Add '-13' to each side of the equation.
13 + -13 + -1r = 15 + -13

Combine like terms: 13 + -13 = 0
0 + -1r = 15 + -13
-1r = 15 + -13

Combine like terms: 15 + -13 = 2
-1r = 2

Divide each side by '-1'.
r = -2

Simplifying
r = -2

See similar equations:

| -5r-4-5r=16 | | -5x+4x=0 | | 3(4x+5)=-8+55 | | 2x+6=x+15 | | 6+x=4 | | 4=-m+3m | | 13=1+5n+n | | -1.25x-12.5=8.35 | | -1.25x-12.5=8.36 | | 3x-2x=1 | | 15=x+1 | | 6x*12=17 | | 5(2+4z)=85 | | 9-1=1 | | 2x-4y=8 | | 64=8(r+2) | | 4+2m=8 | | 3+5q=q+4q | | 3m+1=13 | | 98=-89 | | 3(n+4)+8=.5n | | 6(n+3)+12=12n | | 4(3-2x)=15 | | 2m-2=8 | | 6(n+3)=n-12 | | 16x-4=4x+2+2x+4 | | -4a+5-2a-9=44 | | 0.5y+5.2=-2.8 | | -3y-5=10 | | a-55=-17 | | 9=7z-13z-21 | | 2m+1=7 |

Equations solver categories