3r+7=10r+28

Simple and best practice solution for 3r+7=10r+28 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+7=10r+28 equation:


Simplifying
3r + 7 = 10r + 28

Reorder the terms:
7 + 3r = 10r + 28

Reorder the terms:
7 + 3r = 28 + 10r

Solving
7 + 3r = 28 + 10r

Solving for variable 'r'.

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

Add '-10r' to each side of the equation.
7 + 3r + -10r = 28 + 10r + -10r

Combine like terms: 3r + -10r = -7r
7 + -7r = 28 + 10r + -10r

Combine like terms: 10r + -10r = 0
7 + -7r = 28 + 0
7 + -7r = 28

Add '-7' to each side of the equation.
7 + -7 + -7r = 28 + -7

Combine like terms: 7 + -7 = 0
0 + -7r = 28 + -7
-7r = 28 + -7

Combine like terms: 28 + -7 = 21
-7r = 21

Divide each side by '-7'.
r = -3

Simplifying
r = -3

See similar equations:

| 5(x-4)+x=(6x-2)-8 | | 2(x+8)=-2(x+3)-5x | | -3=4a-2-5 | | -12-4y=12 | | m/6-m/4+m/5 | | -3=1+5b+6 | | 8/5=-7/9p | | 10x+11=5x-9 | | -5w-6=3w+10 | | -6-4y=12 | | 2.4(250)+4-2.8(250)=96 | | 2b-5=8b/1 | | -14+6b+7-2b=5b | | 6-(4n-3)=9-5n | | M/5=7/8 | | 1/x+1/(x+4)=1/6 | | 5(3-n)=2n+1 | | .7x-0.5=.6x+7 | | 8x-5=5x-9 | | 6(-a+7d)= | | -6a-4[2a+7]-7a= | | -4x-15+6x=25 | | v+2/3=10 | | -2/7-3/14 | | n^2-23n+60=0 | | v+2=10 | | 2b-(-2)=-2 | | -6m=-5(m+4)-6m | | 2x^2+21x-28=0 | | -6-(3)(2k+4)=18 | | x+y+3280=33280 | | 3m+7=-29 |

Equations solver categories