Question

I need the steps and answers please

Answer 1

13) Ans;

`6x + 5y = 31 \\ 6x = 31 - 5y \\ \\ x = (31 - 5y)/(6) \\ \\ x = (31)/(6) - (5y)/(6)`

15)Ans;

`4y - 7xy = 15 \\ y(4 - 7x) = 15 \\ \\ y = (15)/(4 - 7x)`

I hope I helped you^_^

Answer 2

For problem 15 it's y=15/4-7x

For problem 13 it's x=31-5y/6

Explanation:

Problem 15:

y(4-7x)=15

y=15/4-7x

Problem 13:

6x=31-5y

x=31-5y/6