100=-4(a-5)

Simple and best practice solution for 100=-4(a-5) 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 100=-4(a-5) equation: 



100=-4(a-5)

We move all terms to the left:

100-(-4(a-5))=0



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

-4(a-5)

We multiply parentheses

-4a+20

Back to the equation:

-(-4a+20)



We get rid of parentheses

4a-20+100=0

We add all the numbers together, and all the variables

4a+80=0

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

4a=-80

a=-80/4

a=-20

See similar equations:

| 205=5x | | -41+t=36 | | 25/12=31/4+k | | 6|x-3|=5x | | 0.25x=0.25-x | | (7x/8)+5=x/4 | | 11x+10=180° | | 1/4(x-3)=3x-11/x-3 | | B+6/b-3=2 | | 28=-(x+4) | | G=8/5(p-82) | | 2x-6=4x+30 | | 4x-2+1x=2+2x | | -16=2(4-2x) | | x+(2x+1)=7 | | 3k+1=7k-2 | | 4x+12=2×-6 | | 10x-8-4x=6x | | 5/3=4/b-1 | | 1=(x-60)/12 | | (8/x-3)+(8/x)=10 | | 5/7x-3=5/8x+7 | | 24x+4=25 | | (m^2)+5m-50=0 | | 5x+10+6x=180° | | 176=-8x | | (2x^2-15)=(x^2+34) | | 5x-125=5 | | 4/5(10y-10)=2/7(7y=14) | | 2c+-8=13-c | | 180+2w=225-1w | | 2x-7+15x=9x+3 |

Equations solver categories