Exercise 15 Page 84

We want to evaluate the given expression when x= 5, y= - 3, and z= - 2. 13x/yz First, we can substitute the given values into the expression. Then, we can simplify our expression as much as possible.

13x/yz

SubstituteValues

Substitute values

13( 5)/- 3 - 2

DivByFracSL

.a /b/c.=a* c/b

1/3(5)* - 2/- 3

MoveRightFacToNumOne

1/b* a = a/b

5/3* - 2/- 3

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Simplify

MultFrac

Multiply fractions

5(- 2)/3(- 3)

MultPosNeg

a(- b)=- a * b

- 5(2)/- 3( 3)

Multiply

Multiply

- 10/- 9

DivNegNeg

- a/- b=a/b

10/9

FracToMixed

Write fraction as a mixed number

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