Answer :
2x + x + 7 = 97
Simplify:
3x + 7 = 97
Subtract 7 from both sides:
97 - 7 = 90
3x = 90
Divide both sides by 3
90/3 = 30
The cost of one drink is 30 pence.
Simplify:
3x + 7 = 97
Subtract 7 from both sides:
97 - 7 = 90
3x = 90
Divide both sides by 3
90/3 = 30
The cost of one drink is 30 pence.