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27-03-2020
Mathematics

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Evaluate the expression if X=7, y=3, z=9.
6x-(z-2y)+15

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27-03-2020

Answer:

54

Step-by-step explanation:

6x-(z-2y)+15

Let X=7, y=3, z=9

6*7-(9-2*3)+15

PEMDAS

Start with the parentheses

(9-2*3)=9-6 =3

6*7-(3)+15

Multiply and divide

42 -3+15

Add and subtract

54

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