4(r-20)=2(r-9)

Simple and best practice solution for 4(r-20)=2(r-9) 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 4(r-20)=2(r-9) equation: 



4(r-20)=2(r-9)

We move all terms to the left:

4(r-20)-(2(r-9))=0

We multiply parentheses

4r-(2(r-9))-80=0



We calculate terms in parentheses: -(2(r-9)), so:

2(r-9)

We multiply parentheses

2r-18

Back to the equation:

-(2r-18)



We get rid of parentheses

4r-2r+18-80=0

We add all the numbers together, and all the variables

2r-62=0

We move all terms containing r to the left, all other terms to the right

2r=62

r=62/2

r=31

See similar equations:

| 2(d+11)=4(d-5) | | 531=b | | 6(d+11)=4(d-5) | | 6(n-7)=3(n-6) | | 2(6p-27)=5p | | .33(6p-27)=5p | | x+73=80 | | 9x4+72x=0 | | 9x-34=5x-6 | | 6+2x=4+2x | | w/6-2.1=-21.3 | | 5.6-2w=2.4 | | -1.24=u/8+9 | | -1.2=6.3+x/3 | | -6.3+4x=6.5 | | u/31.25+6=11 | | w+3/5=1/3 | | -6+2v=18 | | 35=5+4w | | 198-v=274 | | 180=-v+118 | | 166-v=66 | | y=-6-24 | | 20x-5x+35=1025. | | 2x(3x-4)=(2x2+8) | | 8x^2-5x+3=0 | | -3x+2x=-12 | | 13/8=5/4x+8/5 | | 24x-15x=10+26 | | 49.5^2=1/2(9h) | | x+x+15=65 | | 6n=3n+5 |

Equations solver categories