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liberstina [14]
2 years ago
13

Please Help!!!

Mathematics
1 answer:
Mkey [24]2 years ago
3 0
The equation looks like this:

26=x*3.5+8.50

where x is the number of pen you bought.

We solve it like this:
first, we subtract 8.50 from both sides:

17.50 =3.5*x

now we divide both sides by 3.5:
5=x

so you purchased 5 pens.

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Answer:

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Step-by-step explanation:

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If we replace "x" with "y+4" in the second equation we get:

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x = 10 + 4 = 14

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