21+3x=2(-x+8)-20

Simple and best practice solution for 21+3x=2(-x+8)-20 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 21+3x=2(-x+8)-20 equation: 



21+3x=2(-x+8)-20

We move all terms to the left:

21+3x-(2(-x+8)-20)=0

We add all the numbers together, and all the variables

3x-(2(-1x+8)-20)+21=0



We calculate terms in parentheses: -(2(-1x+8)-20), so:

2(-1x+8)-20

We multiply parentheses

-2x+16-20

We add all the numbers together, and all the variables

-2x-4

Back to the equation:

-(-2x-4)



We get rid of parentheses

3x+2x+4+21=0

We add all the numbers together, and all the variables

5x+25=0

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

5x=-25

x=-25/5

x=-5

See similar equations:

| 2/3a-8=7+1/2a | | 3(4x+9)=-9+12 | | 54+90+x+x=180 | | -5(3x-21)=2(x-7)-51 | | e-7.3=-0.34 | | 4(w+5)-8w=24 | | 4x-1+9=81 | | d-39/8=4 | | 12=x+8/x | | 4+2q=20 | | 2+2x=x+52 | | 18=3(p-5)+6 | | 318=6*3x | | 2r+2r+4=20 | | 3x²=48 | | 14=8+3z | | 6-6k^2=-378 | | 8a^2+10=330 | | 630+6p=7(p+6)-5 | | 1.95x+2.50=27.45 | | 5•x=x+12 | | 7(1-y)=-3(-2) | | 9n^2-2=-19 | | 14+3x=x+2 | | 7x+2(6x+9=170 | | 8h÷4=84 | | 5x^2-5=185 | | 18x+74=36x+2 | | 50/8=x/175 | | -x+(7÷4)=1 | | 2x+9+2x-14=180 | | 5x=2=9 |

Equations solver categories