3(7r-7)=84

Simple and best practice solution for 3(7r-7)=84 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 3(7r-7)=84 equation: 



3(7r-7)=84

We move all terms to the left:

3(7r-7)-(84)=0

We multiply parentheses

21r-21-84=0

We add all the numbers together, and all the variables

21r-105=0

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

21r=105

r=105/21

r=5

See similar equations:

| X/x+6=7/10 | | 6(8x+7)=8x+42 | | b+35/8=3/2b+38/9-12/9+113/216 | | 4(3g-2)=16g | | -19=3x+11 | | 7x-10x+18=2X=-5 | | 8x-3×=-15 | | V=1/3πr2 | | 16=4x+20 | | -11x+5=16x+6 | | 2x+6+3x=1 | | 6x+17=8x-27 | | 50+p=70 | | 3(7r-7)=-85 | | 8=6+8n | | 2b-12=36 | | 576x^2-931.20x=-376.36 | | 4x+20=-5x+92 | | 6x+17+8x-27=180 | | 14.63+0.09h=15.11-0.11 | | 20x+15-4=13x-7-3x+5 | | 6x+17+8x-27=90 | | 9y-6y-9=46.56 | | 12-m=6 | | 8n^2+57n+7=0 | | 2(6x)=2(x+27)+2(12x) | | 6/x+9=4/x+5 | | 7/6(6d-18)-23=-19 | | 5(3-6h)-2h=7h-141 | | 19.03+0.08x=16.53-0.13x | | 5(k–2)=10(3k+9) | | 16=14w-6w |

Equations solver categories