Question

How do you solve `7+3x=5`?

Answer 1

`x=-2/3`

Explanation:

`7+3x=5`

So the end goal is to find the value of `x`. First we want to isolate `x`. In this case we do thi by subtracting `7` on both sides of the equation. Because what we do to one side of an equation, we do to the other side as well. Then simplify.
`7-7+3x=5-7`
`3x=-2`

After simplifying, we want to divide both sides of the equation by `3` so that we get the variable by itself.
`3/3x=-2/3`
`x=-2/3`

Answer 2

`x=-2/3`

Explanation:

Given -

`7+3x=5`

Add `-7` to both sides

`7+3x-7=5-7`

`cancel7+3xcancel(-7)=-2`

Divide both sides by `3`

`(3x)/3=(-2)/3`

`(cancel(3)x)/cancel(3)=(-2)/3`

`x=-2/3`