If y equals -3x what does x equal?

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total

How can writing phrases as algebraic expressions you solve problems?