Question

How do you solve `18-2m/5=-2`?

Answer 1

The solution to this equation is `m=50`

Explanation:

Whenever I see an equation with a fraction, I like to get rid of it. You can do that in this case by multiplying by `5` (don't forget to do it at the right side):
`5*18-\cancel(5) * 2/\cancel(5) m=5*(-2)`
`90-2m=-10`
Now we can bring the 90 over to seperate the `m`:
`\cancel(90-90)-2m=-10-90`
`-2m=-100`
Now, all we need to do is divide by `-2`
`\cancel(-2)m/\cancel(-2)=-100/-2`
`m=50`