Question

Please assist me? I'll answer anything related to English, Psychology, or Philosophy in return? ;)

Solve 2x + 5y = 10 for y.

a.) y= 2x + 2
b.) y= -2x + 10
c.) y= - 2/5x + 2
d.) y= 2/5 x + 10

Answer 1

i think its b)

Answer 2

Not "C"?

Answer 3

It's either b or C

Answer 4

sorry nooo

Answer 5

You need to get y on its own, so start by getting rid of the 2x from the left hand side. i.e, subtract 2x from both sides. You now have:
\[5y=10-2x\]
Now, you want to find out what y alone is, not what 5y is. So divide both sides by 5 to get:
\[y=2-\frac{2x}{5}\]

Answer 6

2x + 5y = 10
-> 5y = 10 - 2x
=> y = ....?

Answer 7

It's "C"

Answer 8

Greekstud, where's your proof? It's C, I believe

Answer 9

Does that make sense to you @InsanelyChaotic ? When solving an equation for a particular variable, you need to perform operations to both sides of the equation to get the variable (y) on its own.

Answer 10

wait.... i really did a mistake its a)
because
5y=10-2x
y=10/5 -2x
y=2-2x

Answer 11

@Traxter Yes, that does make sense

Answer 12

Excellent :)

Answer 13

WAIT, why would you subtract and not divide?

Answer 14

Why would you subtract what?

Answer 15

Nevermind, you divided by 5 on both sides

Answer 16

Yes :)

Answer 17

Thank you kind sir

Answer 18

You're very welcome.

Answer 19

I'm officially a fan of yours