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il63 [147K]
2 years ago
13

Simplify the expression by arranging the steps in sequence, based on the order of operations.​

Mathematics
1 answer:
Semenov [28]2 years ago
5 0
The second option
5x+x+4-9
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Alexxandr [17]

Answer:

  b.  (1, 3, ­-2)

Step-by-step explanation:

A graphing calculator or scientific calculator can solve this system of equations for you, or you can use any of the usual methods: elimination, substitution, matrix methods, Cramer's rule.

It can also work well to try the offered choices in the given equations. Sometimes, it can work best to choose an equation other than the first one for this. The last equation here seems a good one for eliminating bad answers:

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  d: 2 -5(-3) +2(0) = 17 ≠ -18

This shows choice B as the only viable option. Further checking can be done to make sure that solution works in the other equations:

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Step-by-step explanation:

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