Answer
4 toppings
Work Step by Step
Let x = the number of toppings
Tony’s Pizza charges $\$7$ for a large cheese pizza plus $\$.75$ for each additional topping: $7+0.75x$
Maria’s Pizza charges $\$8$ for a large cheese pizza plus $\$.50$ for each additional topping: $8+0.5x$
Using substitution:
$7+0.75x=8+0.5x$
$0.25x=1$
$x=4$
The number of toppings at which the cost of a large pizza is the same at each restaurant is \$4.
