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masha68 [24]
2 years ago
9

If x/2+ 7 = 4 , what is the value of 5x - 7?

Mathematics
1 answer:
horrorfan [7]2 years ago
5 0

Answer:

-37

Step-by-step explanation:

for the first equation to equal 4 the x must equal -6.

because something plus 7 had to equal 4. and we know that -3 + 7 equals 4. Now, -6 ÷ 2 equals -3 and that gives us the right answer.

So now plug -6 into the new problem so now it is

5 × (-6) - 7 so according the PEMDAS, we do 5 × -6 first which is -30. and -30 - 7 equals -37!!

hope this helps :)

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