3X+7=7x-21

Simple and best practice solution for 3X+7=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 3X+7=7x-21 equation: 



3X+7=7X-21

We move all terms to the left:

3X+7-(7X-21)=0

We get rid of parentheses

3X-7X+21+7=0

We add all the numbers together, and all the variables

-4X+28=0

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

-4X=-28

X=-28/-4

X=+7

See similar equations:

| X/2+x/3=x-4 | | 5(x-4)=2x+10 | | 4+5x=3/12 | | 12.39=2g+3.65 | | 3k+5=k+9 | | 3x-31x=59 | | 89=-9x+44 | | 7+4(7x+3)=-5 | | 36-x²=0 | | 3x2+Y=23 | | b/8-1/5=13 | | x-7/2=2x-9/3 | | -5r-35=10 | | (5+z)/7=-3 | | 6x+8+5=74 | | 1/5+b/8=13 | | y=3(30) | | 14=3w-7 | | 22m-6=104 | | X+1/2+x+2/5=10 | | x+7/2=2x-9/3 | | 3-3(-6x-4)=7-2(x+6) | | 88=2n | | 28=w+3w | | 9y=90+18 | | 6v+7=v+32 | | 4x^2=-25-25 | | 42=10x-3x | | -2(x-2)^2+8=0 | | 2x+41+7x-24+3x+16=180 | | 8(t+2)-3(t-$)=6(T-7)=8 | | 3y-12+2y=60 |

Equations solver categories