-2r-3+6r=7r+42

Simple and best practice solution for -2r-3+6r=7r+42 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 -2r-3+6r=7r+42 equation:


Simplifying
-2r + -3 + 6r = 7r + 42

Reorder the terms:
-3 + -2r + 6r = 7r + 42

Combine like terms: -2r + 6r = 4r
-3 + 4r = 7r + 42

Reorder the terms:
-3 + 4r = 42 + 7r

Solving
-3 + 4r = 42 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
-3 + 4r + -7r = 42 + 7r + -7r

Combine like terms: 4r + -7r = -3r
-3 + -3r = 42 + 7r + -7r

Combine like terms: 7r + -7r = 0
-3 + -3r = 42 + 0
-3 + -3r = 42

Add '3' to each side of the equation.
-3 + 3 + -3r = 42 + 3

Combine like terms: -3 + 3 = 0
0 + -3r = 42 + 3
-3r = 42 + 3

Combine like terms: 42 + 3 = 45
-3r = 45

Divide each side by '-3'.
r = -15

Simplifying
r = -15

See similar equations:

| 10y-22+68=180 | | 2x+3(4+x)=-2(3+3)+1x | | 0.05x+0.8y=750 | | 15f^2-4f-3=0 | | y(x)+4= | | 49h^2-11h=0 | | 2p+17=8p+47 | | 3(x-1)-(9x-1)/26 | | X/-9=1 | | 3K^2+18K+15= | | 12+4n=4+(n+3) | | 3(2x-y)-2=2(3x-4)+4 | | 28/2g-8 | | 7+x-11=149 | | 5n-35=3x(-n) | | 21+20m=42+13m | | y=y^2+4x+32 | | (6+u)(5u-8)=0 | | 36q^2-13q=0 | | -25y/5=-5/5 | | 8-2w=-2 | | 375=300+20x-x^2 | | 2z-7=7 | | 265x-240=250x | | 2x+1=(x+3) | | 11/16(-7/9) | | 4m+24=36 | | 4.8/1.32=c/1.1 | | 3+3p=-6 | | 14-2f=4 | | 3+5x-3x=6+3x-3x | | 18sin(x)cos(x)-6cos(x)=1 |

Equations solver categories