-21=-7(3x+4)+28x

Simple and best practice solution for -21=-7(3x+4)+28x 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=-7(3x+4)+28x equation: 



-21=-7(3x+4)+28x

We move all terms to the left:

-21-(-7(3x+4)+28x)=0



We calculate terms in parentheses: -(-7(3x+4)+28x), so:

-7(3x+4)+28x

We add all the numbers together, and all the variables

28x-7(3x+4)

We multiply parentheses

28x-21x-28

We add all the numbers together, and all the variables

7x-28

Back to the equation:

-(7x-28)



We get rid of parentheses

-7x+28-21=0

We add all the numbers together, and all the variables

-7x+7=0

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

-7x=-7

x=-7/-7

x=1

See similar equations:

| 96=-4(6-5a) | | 2a+19/7=-1 | | 6x+5-3x=7x-1 | | 2/3+x=16/15 | | 5(4d+3=) | | T=50+n-4/4 | | (14x-6)+44+x=180 | | 5/3x-5=60 | | w/4+5=20 | | 7(3a+12)-21a=80 | | -2+-w=1 | | (14x-6)+44=180 | | (4x)+7=x-2 | | 30x+105=6x–10 | | 3(x-15)=14 | | 3x^2+10x=63+8x | | 110=5(x-12) | | 8y+3=12y-8 | | 5(m+2)=-5(m-2) | | 0.24x=9 | | 0.6/x=2.6 | | 6r+7=13+7r. | | 15+10a=10a | | 2x+1+4x-19=280 | | 3x-2+x+4=5x-5 | | 4x=3” | | 10-3​x​-6​x​=37 | | -31-5r=-5(r+7) | | x2/3=6/15 | | 10+4(-5d+9)=-10-9d-10 | | –2+–w=1 | | 2+8h=–4+9h |

Equations solver categories