x+2x+-3=18

Simple and best practice solution for x+2x+-3=18 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 x+2x+-3=18 equation: 


Simplifying
x + 2x + -3 = 18

Reorder the terms:
-3 + x + 2x = 18

Combine like terms: x + 2x = 3x
-3 + 3x = 18

Solving
-3 + 3x = 18

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 3x = 18 + 3

Combine like terms: -3 + 3 = 0
0 + 3x = 18 + 3
3x = 18 + 3

Combine like terms: 18 + 3 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

See similar equations:

| 105+x+21=180 | | f(x)=15x^2+340 | | (8(9)-23)(2(9)+31)= | | 8b^2=12b | | R^3-R^2+R=0 | | B^2=12b | | -3+2+x=x+5 | | 2/4=n/10 | | 3x(2x+1)(x+1)=0 | | b^2-8b-35=0 | | 25x^2-32x+6=0 | | 0=(x-a)(x-b) | | 40+5*x+x+20=180 | | 11=6x+42 | | 11=6x+42 | | b^2-5b-35=3b | | 10x+2x^2= | | 24a+6= | | 10x+2x^2=72 | | Twothirdsx=30 | | -3.2m=-158.08 | | 17x+(-17x)+15=-4-(-8) | | =(x^2-3y^2)(x^2+7y^2) | | 79+2x=x | | -227.8=21.6y | | x-(10/x)=3 | | 5a^2+5a+7=0 | | 5h-2(6-2m)=18 | | x(10/x)=3 | | 3f+9=27 | | 9m^2+2m-16=0 | | =3x^2+19+14 |

Equations solver categories