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dezoksy [38]
3 years ago
15

HELP ME PLEASEEEE! Thank you

Mathematics
1 answer:
Sergio039 [100]3 years ago
6 0

Answer:

A. Yes

B. Yes

C. No

Step-by-step explanation:

We can substitute each value in to the equation and see if the sides match up. Let's start with a.

4\cdot(2)-3 = -2\cdot(2)+9\\8-3 = -4+9\\5 = 5

So, n = 2 works for equation a. Let's try B.

9\cdot(\frac{10}{3}) - 19 = 3\cdot(\frac{10}{3}) + 1\\\\\\\frac{90}{3} -19 = \frac{30}{3} + 1 \\  30 - 19 = 10 + 1\\11 = 11

So, m = \frac{10}{3} works for B. Now let's try C.

3(30+8) = 2\cdot(30)-6\\3(38) = 60-6\\114 \neq 54

So y = 30 doesn't work for C.

Hope this helped!

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Step-by-step explanation:

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