If you subtract 4 from both sides your left with 15, then divide by 3 to find x. your left with x=5
The answer is 2
You multiply both sides by 2 (7y-16=-2)
Then move the constant to the right (7y=-2+16)
Then calculate the sum (7y=14)
The divide both sides by 7
Y=2
C) 24200
I have done by brute force. But could you tell me the name of this theory please to study it? Thank you.
