HELP PLZ

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Can any one me with the answers to these questions asap?

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =