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McGraw Hill Glencoe Algebra 2, 2012 View details

1. Expressions and Formulas

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Exercise 18 Page 7

Substitute - 4 for a, - 0.8 for b, 5 for c, and 15 for d.

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Practice makes perfect

To evaluate the given expression for a = - 4, b = - 0.8, c= 5, and d= 15, we should substitute these values into the expression and simplify as much as possible.

a+b/c-d

SubstituteValues

Substitute values

- 4+(- 0.8)/5- 15

AddNeg

a+(- b)=a-b

- 4 - 0.8/5- 15

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Simplify

SubTerm

Subtract term

- 4.8/5- 15