Xavier spent $84 on art supplies. the canvas for each of his paintings is an additional $1. he plans to sell his paintings for $8.
a. write an equation that can be used to find the number of paintings (p) he will need to sell to break even.
b. solve the equation from part a. check the solution.

Part a) The equation is

Part b)  

Step-by-step explanation:

Let

p -----> the number of paintings

we know that

Break even is when sales are equal to cost.

The linear equation that represent this problem is

Solve for p

Subtract p both sides

Divide by 7 both sides

Rewrite

Check the solution

substitute the value of p

----> is ok

0 is its x and y coordinate