First answer: x = 3
How?
3x - 7 = 2
3x = 2 + 7
3x = 9
x = 9/3
x = 3
Second Answer:= x=5
3 + 2x - (x + 1) = 3x - 6
-3x + 2x - x = -6 - 3 - 1
-2x = -10
x = 5
