-15=9r+1-7r

Simple and best practice solution for -15=9r+1-7r 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 -15=9r+1-7r equation:


Simplifying
-15 = 9r + 1 + -7r

Reorder the terms:
-15 = 1 + 9r + -7r

Combine like terms: 9r + -7r = 2r
-15 = 1 + 2r

Solving
-15 = 1 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-15 + -2r = 1 + 2r + -2r

Combine like terms: 2r + -2r = 0
-15 + -2r = 1 + 0
-15 + -2r = 1

Add '15' to each side of the equation.
-15 + 15 + -2r = 1 + 15

Combine like terms: -15 + 15 = 0
0 + -2r = 1 + 15
-2r = 1 + 15

Combine like terms: 1 + 15 = 16
-2r = 16

Divide each side by '-2'.
r = -8

Simplifying
r = -8

See similar equations:

| 12-.3u=2 | | -18=9y-5y+10 | | 3p-5=2p+10 | | 4n-6m=-2n | | -2(x+1)=3x+1 | | 3x+56=8x+6 | | 10=x-7 | | 10(x+3)=73 | | 3n+1=-n+2 | | 2(4f-5)=6f+8 | | 2(x+1)=3x-1 | | 2x-10=44+8x | | 2m=-6n-5n | | 15-4x=42-7x | | =1+2n+9 | | 4(2y-2)=7(y+3) | | 3m-9n=24n | | -10=-24v | | 9y+3=5y-13 | | 3.6y+7.5=8.2y | | 3y-4=3-2y | | 3y-4=3-2 | | 8(1+5x)+5=13+5k | | 1356=2t+284 | | 3b-1=14+2b | | 7d-3+2d=5d-8+1 | | 3y-6+y+22=6y+20-4y | | 3s+5t-t-2s= | | 3(q+5)=16 | | 6x=35+x | | 1+3x=7x-7 | | Y=-7x+3 |

Equations solver categories