3r+15=r+3

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


Simplifying
3r + 15 = r + 3

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

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

Solving
15 + 3r = 3 + 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.
15 + 3r + -1r = 3 + r + -1r

Combine like terms: 3r + -1r = 2r
15 + 2r = 3 + r + -1r

Combine like terms: r + -1r = 0
15 + 2r = 3 + 0
15 + 2r = 3

Add '-15' to each side of the equation.
15 + -15 + 2r = 3 + -15

Combine like terms: 15 + -15 = 0
0 + 2r = 3 + -15
2r = 3 + -15

Combine like terms: 3 + -15 = -12
2r = -12

Divide each side by '2'.
r = -6

Simplifying
r = -6

See similar equations:

| -8x-36=24-10x | | 3x-94=-6x+104 | | -4x-21=-6x+31 | | 2x-5(-5)=18 | | -114+9x=2x+75 | | 45=9c | | 4x-8=9x+5 | | x+30+3x+60+4x+30= | | 6x-64=-x+97 | | 8=8v | | 3y+1=4y-2 | | 4x=-2+42 | | -80-x=-6x+40 | | 0=-17 | | 5e=-19 | | 2+9r=27 | | 2x+(x-10)=8 | | -x+3=-2x+2 | | 2x-11=7x+9 | | 2x+(x-10)=98 | | (9x-1)(x^2-6x+1)= | | 12m+9m+3m= | | 33+5n=-6(1-3n) | | 7m-14=2 | | 13(y+1)=65 | | x-9=(-20) | | 4x-6=6x-14 | | 240+0.15x=324 | | 4/x=x/(x+3) | | 3(x+7)=21 | | 5(x+8)=80 | | -3-1=-6+x |

Equations solver categories