3 years ago

Please helpppp very confused

Mathematics

2 answers:

iogann1982 [59]3 years ago

6 0

Answer:

the second one

step by step explanation:

1. if you have - and -, when you combine it becomes +

Sav [38]3 years ago

6 0

Answer:

si tu no sabes menos yo

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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A student says that if 5x2 = 20, then x must be

lutik1710 [3]

Answer:

I agree with the student's answer. "x" cannot be -2 because then it would make -20 which is not equal to 20:

5(-2)(2) = ?

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? = -20

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Step-by-step explanation:

Justificaiton:

5(x)(2) = 20

10(x) = 20

10/10(x) = 20/10

x = 2

Second Justification:

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