Answer:
G= 56/3
Explanation:
56/3 is an ugly number if you ask me but it was the answer I got, and here's how I got it!
So first off you want to change -49 to a positive and add it to 7! This will change the equation to 3g=56, from here just divide 56 by 3! Which if you don't turn into a fraction it'll just be a really long number. So g=56/3! If you have any more questions feel free to ask!