Answer: First option.
Explanation:
Given the equation
, you need to solve for the variable "x" to find its value.
Add the like terms on the right side of the equation:
![-x = 10-3x](https://img.qammunity.org/2020/formulas/mathematics/middle-school/zb4q68390q1zle94uqh02stye5cd2f3gfb.png)
Now you need to subtract 10 from both sides of the equation:
![-x-10 = 10- 3x -10](https://img.qammunity.org/2020/formulas/mathematics/middle-school/92cb5og82pkpfytjypriq67sn0ko7o5j4r.png)
![-x-10 =- 3x](https://img.qammunity.org/2020/formulas/mathematics/middle-school/frvs0q3udelnhytyv4zznx6dcny3dvovg6.png)
The next step is to add "x" to both sides of the equation:
![-x-10+x = - 3x +x](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fll7i5bncurt99e44h174cg7818nrdzh9r.png)
![-10 = - 2x](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jhylpd799jxosazdsau8vsl4bsl1xu5ifl.png)
And finally, divide both side by -2:
![(-10)/(-2)=(-2x)/(-2)\\\\x=5](https://img.qammunity.org/2020/formulas/mathematics/middle-school/zru9dp8ya02rs2lysensk13n3jpr6usicg.png)