-7x+21=42

Simple and best practice solution for -7x+21=42 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=42 equation:


-7x+21=42

We simplify the equation to the form, which is simple to understand 
-7x+21=42

We move all terms containing x to the left and all other terms to the right. 
-7x=+42-21

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:

| 8x-6=4(x-6)+5 | | x+3(9-13)= | | x-5=4x+4 | | (x/10)=(x/11)-15 | | (x+8/8)=(3/4)+(x-7/3) | | 2x/5-x=x/10-21/2 | | -6x-24=-48 | | 5x+33=-2x+5 | | 2.1+y/6=-17.1 | | 16x=24x-9 | | 7-(x/8)=x/6 | | x^2+8x+2688=0 | | 4y^2+45y+11=0 | | 2COSX=1 | | (y-9)-(y+6)=4y | | a+70=3B | | 2COS^2X-COSX-1=0 | | -7x-21=-28 | | 19x=2x^2+42 | | 8+n= | | 6(x+2)+5x=-3(x-4)+14x | | x/12=(x/13)-14 | | 2c^2-16c-168=0 | | y=5x^2+25x+4 | | (e^3/3e)^-2 | | 28=5x+3 | | 4(x+3)=6(3+3x)-14x | | 1/14p=7/6 | | 5x+4-2(2x-7)=4x+3 | | -9x-18=-27 | | 2x^3-3x^2-12x+7=0 | | 2x^2+20x-5=0 |

Equations solver categories