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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 15 Page 7

Substitute - 3 for w, 2.6 for y, and 13 for z.

- 13.4

Practice makes perfect

To evaluate the given expression for w= - 3, y= 2.6, and z= 13, we should substitute these values into the expression and simplify as much as possible.

9z-4y+2w

SubstituteValues

Substitute values

9( 1/3)-4( 2.6)+2( - 3)

MoveLeftFacToNumOne

a* 1/b= a/b

9/3-4(2.6)+2(-3)

CalcQuot

Calculate quotient

3-4(2.6)+2(-3)

Multiply

3-10.4+2(-3)