-7x-21=

Simple and best practice solution for -7x-21= 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 -7x-21= equation:


-7x-21=0

We simplify the equation to the form, which is simple to understand 
-7x-21=0

We move all terms containing x to the left and all other terms to the right. 
-7x=0+21

We simplify left and right side of the equation. 
-7x=+21

We divide both sides of the equation by -7 to get x. 
x=-3

See similar equations:

| P-9=-19 | | y^2+21y+98=0 | | 33=-2x+6x+1 | | -2=3x-3 | | -5(2x-9)=2(x-9) | | -17=6x+6 | | -5(2x-9)=2(3x+12) | | 8x+-4+4x=16 | | U/-6=-14 | | 7(d-4)+9= | | 5y-9=0 | | -7+9x+7x=121 | | -8y-9=17 | | 0.4x+0.25(148-x)=32 | | (x+9)(x-9)=3(x-27) | | -4(7n-6)+28n= | | 10+7x+-4x=120 | | 3z-8=14 | | 5w+12=2 | | a/8=-8 | | 14+5x=-3x+9-11 | | 7+3t/4=t/8 | | -(5a-8)+4a-9= | | 49=x+-3x+9 | | 2/5x^2-10/9=0 | | 1/4(+3)=4-2(-3) | | -9=-h | | y-3/4=-5/12 | | 0=-8+4x^2 | | -4p=-44 | | 4/9x+3=-5/9-4 | | 12x(2x+3)=0 |

Equations solver categories