Exercise 13 Page 84

We want to evaluate the given expression when x= 5, y= - 3, and z= - 2. y+z/x First, we can substitute the given values into the expression. Then, we can simplify our expression as much as possible.

y+z/x

SubstituteValues

Substitute values

- 3+( - 2)/5

AddNeg

a+(- b)=a-b

- 3-2/5

SubTerm

Subtract term

- 5/5

MoveNegNumToFrac

Put minus sign in front of fraction

- 5/5

QuotOne

a/a=1

- 1