128=-4(3+5r)

Simple and best practice solution for 128=-4(3+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 128=-4(3+5r) equation: 



128=-4(3+5r)

We move all terms to the left:

128-(-4(3+5r))=0

We add all the numbers together, and all the variables

-(-4(5r+3))+128=0



We calculate terms in parentheses: -(-4(5r+3)), so:

-4(5r+3)

We multiply parentheses

-20r-12

Back to the equation:

-(-20r-12)



We get rid of parentheses

20r+12+128=0

We add all the numbers together, and all the variables

20r+140=0

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

20r=-140

r=-140/20

r=-7

See similar equations:

| 6x+7(x-5)=-139 | | 10−3t=4 | | -88=-8(3+m) | | 2(3-y)=26 | | 2x^2+4x+80=0 | | 4(2a+25)=34 | | x(x+5)=1/2(x+11)(x+7)(x+4) | | 5d=3.6 | | 2x+3(7x+5)=-100 | | ∠B=4x+38 | | 2x-3=x+77 | | 2q−9=3 | | 20=1/6m+4 | | 9y+14=6-3y | | X+14=3(x+2 | | 126=7(3-5k) | | 2n-0.5n=160 | | 2(4x-6)=24 | | 5+3r=14 | | 5(x+7)^2=-405 | | 10x^2+15x-20=0 | | |2n+5|+15=4 | | 7/8x+3/4=3/4x | | 5t-4=3t+12 | | 7a+3a=80 | | 10x25-35+x=300 | | 4g-(-7)=11 | | x^2-8x-62=0 | | 100⁄(2n)=0 | | 2^3x+6=1 | | 5(2)^(3x)-4=16 | | 43x+188=6x+216 |

Equations solver categories