Question

Erica earns a rebate each month on her meals and movie tickets. She earns $3 for each movie ticket and $0.80 for each meal. Last month Erica purchased 15 meals and earned $18

Solve this equation justifying each step with an algebraic property of equality

Answer 1

x=number of movie tickets
15 meals × 0.80 per each meal
15(0.8)+3x=18.........Equation Given
12+3x=18................Combine like Terms
12-12+3x=18-12......Subtraction Property of Equality
3x=6........................Combine like terms
3x/3=6/3..................Division Property of Equality
x=2..........................Simpilyfy