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 move all terms to the left:

7x+21-(-42)=0

We add all the numbers together, and all the variables

7x+63=0

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

7x=-63

x=-63/7

x=-9

See similar equations:

| 2(2x+2)+x=5 | | 24x-62=6•3 | | 8y-28=-4 | | 6(x−1)=2(3+3x) | | 4+-2x=16 | | 3(x-4)=-2((4-x) | | 8y-28=4 | | 9x+7=14x-23 | | 4=-1/6y | | -14.9=-2.4+x/5 | | 10r+15=-5 | | x*25=3-x | | 2x+8=+3x+38 | | b(10-4)=2b(6-10)+4b | | 10r+15=5 | | 2(3x-5)+8(x+2)=-3(-5x+7) | | k-2=2k+8 | | 6(3x−1)=5(4x+3) | | 7k=15=3k+1 | | 0.2x+0.9=0.9x-5.4 | | 20x+72=8x | | 1.25x^2-2.5x+1.25=0 | | 3x-5=15+3x | | 8x-1+11x-25=360 | | u/8+5.5=-7.3 | | 3+6x=-87 | | -1.1+b/4.6=-1.143 | | 20=y-60 | | 1.25^2-2.5x+1.25=0 | | 3y-3y=9 | | 3.4-0.2=2.9+1.8x | | -6(12r-2)-12r=3(-18r-16) |

Equations solver categories