3r+8=31r+15

Simple and best practice solution for 3r+8=31r+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 3r+8=31r+15 equation:


Simplifying
3r + 8 = 31r + 15

Reorder the terms:
8 + 3r = 31r + 15

Reorder the terms:
8 + 3r = 15 + 31r

Solving
8 + 3r = 15 + 31r

Solving for variable 'r'.

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

Add '-31r' to each side of the equation.
8 + 3r + -31r = 15 + 31r + -31r

Combine like terms: 3r + -31r = -28r
8 + -28r = 15 + 31r + -31r

Combine like terms: 31r + -31r = 0
8 + -28r = 15 + 0
8 + -28r = 15

Add '-8' to each side of the equation.
8 + -8 + -28r = 15 + -8

Combine like terms: 8 + -8 = 0
0 + -28r = 15 + -8
-28r = 15 + -8

Combine like terms: 15 + -8 = 7
-28r = 7

Divide each side by '-28'.
r = -0.25

Simplifying
r = -0.25

See similar equations:

| 5x+81=180 | | 7y=33-47 | | 6+3(5x-6)=9-4(2x+1) | | F+2+2=-2 | | (30*8.75)+11x=400 | | 4.3c-13.19=5.7c+14.98-0.73 | | -p-6=8 | | 80[2r+5]=84 | | 8-6z=2 | | 2(x+11)(x-5)=0 | | (40x+15)= | | 2(x+11)(x-5)=100 | | 8x-20=.5x+5 | | -3(2x-9)=-9 | | 3t+20=3 | | -19(2x-26)=152(-6x+55) | | 2(2x+22)=8x | | 5.52+11.7p=-1.2p+3.98+14.3p | | 25x-45-19x=9 | | 7(x+4)-(3x-2)= | | -19(2x-26)=152(-6+55) | | 0.15+17.4n=18.9n+15.57+8.58 | | 14x+15=21 | | (11x-12)+(4x+1)+x=180 | | -18f-5+16=-17f+9 | | 2(t+4)+5t=1 | | 2x+116=180 | | 10(23+7)=100x+100x | | 17x-14x=13 | | 4(w-3)=3(5+w) | | (x-40)+(3x-100)=90 | | 4b-6-10b-3= |

Equations solver categories