The answer would be 11x-12
For A: 1 senior; 1 infant; 2 children; 4 adults, out of 8 people
for B: 1 senior; 3 infants; 6 children; 6 adults, out of 16 people
for D: $43.75
for E: $76.25
7+3x=2x+2
Send constants to one side and others to one side
3x-2x=2-7
x=-5
Answer:
x+3= 2x when x = 3
3+3 = 2*3
6= 6
They are not equal when x is any other number rather than 3
If you use rise/run, the answer is 3/4. Up 3, over 4
