84=4(-4+5r)

Simple and best practice solution for 84=4(-4+5r) 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 84=4(-4+5r) equation: 



84=4(-4+5r)

We move all terms to the left:

84-(4(-4+5r))=0

We add all the numbers together, and all the variables

-(4(5r-4))+84=0



We calculate terms in parentheses: -(4(5r-4)), so:

4(5r-4)

We multiply parentheses

20r-16

Back to the equation:

-(20r-16)



We get rid of parentheses

-20r+16+84=0

We add all the numbers together, and all the variables

-20r+100=0

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

-20r=-100

r=-100/-20

r=+5

See similar equations:

| x-2x=4+2 | | 30=24+y | | n-0.3n=3 | | -5b-6b=-22 | | 6x-18x+36=4x-12-8x | | 4x5+3x=4 | | 38+64+x=180 | | 2/3x=11.5 | | 5x+49=13x | | t²-64=0 | | 3n+3=2n=6 | | 3.7x+10-2.7x=4 | | 5x+8=3x+3x | | 6x+6=-6x+6 | | 6x+6=-6x | | X=21756-(18086+y) | | 8x+6=7x+7x | | 8x+13x-42=0 | | 39x-13=19x+19x | | 144=4x^2+84x | | 2x(9-5x)=-5(2-3x) | | 4x+5=6x+1=8x+30 | | 2n+6=4n-4 | | 5x-38=-2(1+-7x) | | X=3670-y | | 8x+4=x+8+x+8 | | (8x+6)−(7x+9)=x | | 2×(x+4)=(x-3)(x-3) | | 4x+7=(x+3)-7 | | 3x-10=8x-5 | | 4x+7=(x+3)-0 | | 2x+(60-x)=180 |

Equations solver categories