Question

Can anyone solve this....

7((2-2y)/(5))+3y=6

I know y=16, but I was wondering how to get to that point???

Answer 1

7((2 - 2y) / (5)) + 3y = 6

7(.4 - .4y) + 3y = 6

2.8 - 2.8y + 3y = 6

Combining like terms...

2.8 + .2y = 6

0.2y = 3.2

And that's how you get 16. Things get a bit easier if you convert your fractions into decimals instead of working with all that clutter.

Answer 2

First you would do distributive property... multiply the seven by two and negative 2y. This would make the equation 14-14y/5+3y=6

Now we're going to combine like terms...

-14y and 3y gets you -11y

14/5 gets you 2.8

New equation is -11y+ 2.8 = 6
Subtract 2.8 form both sides...

New equation is -11y = 3.2

Divide both sides by -11

y= a repeating decimal...how did you get 16?

If you want to know how you got 16 plug 16 back in for "y" and see if the equation is true or false.