Chapter 3: Q57. (page 135)

Evaluate each expression if $x = - 2, y = 6,$ and $z = 5$ .
57. $x + y + z$ .

Short Answer

Expert verified

The value of $x + y + z$ is 9.

Step by step solution

– Use the substitution method to find the value of x+y+z.

Substitute $x = - 2, y = 6$ and $z = 5$ in . $x + y + z$

$x + y + z = (- 2) + 6 + 5$

– By applying the order of operations simplify the value of x+y+z.

$\begin{matrix} x + y + z = (- 2) + 6 + 5 \\ = - 2 + 6 + 5 Simplifytheparanthesis \\ = 4 + 5 Dothesubtraction \\ = 9 Dotheaddition \end{matrix}$

– Conclusion

By substituting the values $x = - 2, y = 6$ and $z = 5$ in $x + y + z$ , the value of the expression is 9.

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Evaluate each expression if $x = - 2, y = 6,$ and $z = 5$ .
57. $x + y + z$ .

Short Answer

Step by step solution

– Use the substitution method to find the value of x+y+z.

– By applying the order of operations simplify the value of x+y+z.

– Conclusion

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Evaluate each expression if x=-2,y=6,and z=5.57.x+y+z.

Short Answer

Step by step solution

– Use the substitution method to find the value of x+y+z.

– By applying the order of operations simplify the value of x+y+z.

– Conclusion

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Statistics

Decision Maths

Probability and Statistics

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Mechanics Maths

Study anywhere. Anytime. Across all devices.

Evaluate each expression if $x = - 2, y = 6,$ and $z = 5$ .
57. $x + y + z$ .