20=-10(10+a)

Simple and best practice solution for 20=-10(10+a) 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 20=-10(10+a) equation: 



20=-10(10+a)

We move all terms to the left:

20-(-10(10+a))=0

We add all the numbers together, and all the variables

-(-10(a+10))+20=0



We calculate terms in parentheses: -(-10(a+10)), so:

-10(a+10)

We multiply parentheses

-10a-100

Back to the equation:

-(-10a-100)



We get rid of parentheses

10a+100+20=0

We add all the numbers together, and all the variables

10a+120=0

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

10a=-120

a=-120/10

a=-12

See similar equations:

| -1+a/3=-3 | | -181=-10+9p | | 4K+-3k+11k+16k-15k=-13 | | 5m+12m-6=1 | | -5a+1=-2-4a | | 3x-36=2x+22 | | 0,4p=1,2p+5,6 | | 3c-30=5c-83 | | 6v-6v+-3v=18 | | 0,4p=12p+5,6 | | c+2c=33 | | 16-2q=q=7 | | x+11+8x=9 | | 3y-6=10y-100 | | -0,4p=12p+5,6 | | 5m+6(2m-6)=1 | | 52=-8x+4 | | Q=4-3q | | 90=5u^2 | | 7a-15=1+3a-4a | | 2x-5+12x=+37-3x | | (2/5x+4)*2=2/5x | | m+8+2m=-4 | | -2+3z=-z+10 | | 5n=511⋅53 | | m+8+m=-4 | | 5x+7+8x-4+4x+16=180 | | 10c-80=9c-70 | | 7-8(-3v-8)=215 | | 8(1-4x)=136 | | 19=b/4+16 | | 10x-21=6x-9 |

Equations solver categories