10. 2x + 7y = 1
2x - 4y = 12
solve for y

The solution for y = -1.

Step-by-step explanation:

Given:

   ....(1)

 ....(2)

So, to solve for y, first we solve for x in equation (2):

⇒

Dividing both sides by 2,

⇒            

Now, substituting the value of x  in equation (1):

⇒

⇒

⇒

⇒

⇒

Dividing both sides by 11,

⇒

Therefore, the solution for y = -1.

step-by-step explanation:

in the absence of parentheses, i will have to make some assumptions:   i interpret your (3x+5/y^6)(4y^3/5)​ to mean:

3x + 5     4y^(3/5)       (3x + 5)(4)

* =

    y^6             1               y^(6-3/5)

if this is not what you expected, repost your question using parentheses to indicate whether you meant

4y^3

    or   4y^(3/5)

    5