Question

Solve the equation for y.

5x – 7y = 10

A)http://static.k12.com/bank_packages/files/media/mathml_5183eeb4a3777a2b74515a6211b6f3a8b468520c_1.gif


B)http://static.k12.com/bank_packages/files/media/mathml_7556c656425ac90fff8f7d15eda8875a42e1af31_1.gif


C)http://static.k12.com/bank_packages/files/media/mathml_6dda4b96a1ecda671975860e0d11e9e7027dc252_1.gif


D)http://static.k12.com/bank_packages/files/media/mathml_0f30165ad08873e75727e3542f99b7b2d723e81e_1.gif

Answer 1

Subtract 5x to both sides:

-7y = -5x + 10

Now divide -7 to all terms..what do you get? @jordanloveangel

Answer 2

Simplifying
-7y = -5x + 10

Reorder the terms:
-7y = 10 + -5x

Solving
-7y = 10 + -5x
this is how i started it is this right @igreen

Answer 3

@YungKhris

Answer 4

I already figured it out for you..dividing -7 to all terms will give you:

\(\dfrac{-7y}{-7} = \dfrac{5x}{7} - \dfrac{10}{7}\)

Answer 5

Just simplify -7y/-7..what does that give you? @jordanloveangel

Answer 6

aye

Answer 7

y-7

Answer 8

right?

Answer 9

No.. you're dividing -7y/-7..it's the same thing as -7/-7 and you add the y after.

So what's -7 / -7? @jordanloveangel

Answer 10

1

Answer 11

Yep, so that gives us 1y or just y.

So the final answer is:

\(y = \dfrac{5}{7}x - \dfrac{10}{7}\)

Answer 12

So which option is it gonna be? @jordanloveangel

Answer 13

C

Answer 14

Yep!

Answer 15

thanx