Bawi solves a problem that has an answer of x = -4. He first added 7 to both sides of the equal sign

[math_celebrity]

Bawi solves a problem that has an answer of x = -4. He first added 7 to both sides of the equal sign, then divided by 3. What was the original equation

1. If we added 7 to both sides, that means we had a minus 7 (-7) to start with as a constant. Since subtraction undoes addition.
2. If we divided by 3, this means we multiplied x by 3 to begin with. Since division undoes multiplication

So we have the start equation:
3x - 7

If the answer was x = -4, then we plug this in to get our number on the right side of the equation:
3(-4) - 7
-12 - 7
-19

This means our original equation was:
3x - 7 = -19

And if we want to solve this to prove our answer, we type the equation into our search engine and we get:
x = -4