7x-3x=x+9

Simple and best practice solution for 7x-3x=x+9 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-3x=x+9 equation: 


Simplifying
7x + -3x = x + 9

Combine like terms: 7x + -3x = 4x
4x = x + 9

Reorder the terms:
4x = 9 + x

Solving
4x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
4x + -1x = 9 + x + -1x

Combine like terms: 4x + -1x = 3x
3x = 9 + x + -1x

Combine like terms: x + -1x = 0
3x = 9 + 0
3x = 9

Divide each side by '3'.
x = 3

Simplifying
x = 3

See similar equations:

| -84-4x=112-11x | | 20-3x=3x+2 | | -82+x=94-6x | | -2s+3=5+24 | | -22+12x=-2x+135 | | (35x+16y)(21x+28y)= | | 4x^3+13x^2-9=0 | | y=1/2*9 | | 4w-17=-11 | | (35x+16y)-(21x+28y)= | | 49-2x=8x+18 | | c-23=16 | | t+17=32 | | x/7=-12 | | 3x-5+7x-2= | | 2w^2+7w+6= | | Xcubed+10x=23 | | 32=4(3y-5) | | 2(5c+4)= | | 12x+2y=110 | | -2/3(s-2)=21 | | 3(29-y)=11 | | 2a^2+7a-15=0 | | 2x-3/6+x+4/2=5 | | w-15=20 | | 4(-3k+4)+5= | | 4(x-10)=76 | | 4s^2-4t^2-4t-1=0 | | 9x+1+1=10(3x) | | -5x-7-8x-4x= | | -6x+5+8x-4= | | 5x+8+3-7x= |

Equations solver categories