Question

How do you solve `-(1+7x)-6(-7-x)=36`?

Answer 1

`x=5`

Explanation:

First I would multiply both sides with `-1`:
`-(1+7x)-6(-7-x)=36`
`=>1+7x+6(-7-x)=-36`
`=>1+7x-42-6x=-36` (Multiply 6 with each term in the parenthesis.
`=>x-41+41=-36+41` (add 41 to both sides to get only the unknown to the left of the equality sign)
`0>x=5`

Last step is to use the value of `x=5` in the original equation to see if the left side equals the right side. I'll leave that to you.