3x=7x-84

Simple and best practice solution for 3x=7x-84 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=7x-84 equation: 


Simplifying
3x = 7x + -84

Reorder the terms:
3x = -84 + 7x

Solving
3x = -84 + 7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.
3x + -7x = -84 + 7x + -7x

Combine like terms: 3x + -7x = -4x
-4x = -84 + 7x + -7x

Combine like terms: 7x + -7x = 0
-4x = -84 + 0
-4x = -84

Divide each side by '-4'.
x = 21

Simplifying
x = 21

See similar equations:

| 56+c=109 | | 47=72-b | | h+39=56 | | 3.1y-1.5=5.32 | | 6a-a=60 | | 6x-9y=10 | | 34-b=13 | | h-15=31 | | h-39=56 | | 15x-7x=88 | | 28+u=92 | | 54+f=70 | | 66-d=44 | | 69=50+s | | 24-k=3 | | 59-x=42 | | s+12=17 | | 7x+x=64 | | 5x-9=4x-7 | | 45+r=59 | | 18-v=9 | | y-25=3 | | 7+f=15 | | 26-d=19 | | 64+n=70 | | y=x^2+6x-1 | | 175=w+75 | | 49-c=41 | | 20+r=25 | | 16+z=25 | | 18=20-b | | 3x+5x=800 |

Equations solver categories