Question

1. Determine the following set of adjustments to the equation then draw the graph !!

a. 3u + y = 9: u, yec

b.3u-5y = 15; u, yer

please help sis​

Answer 1

y = -1 and u = 3.333

Explanation:

The given equations are :

3u + y = 9 ...(1)

3u-5y = 15 ...(2)

Subtract equation (2) from (1).

3u + y-( 3u-5y)= 9 -15

y+5y = -6

6y = -6

y = -1

Put the value of y in equation (1).

3u + (-1) = 9

3u-1 = 9

3u = 10

u = 10/3

u = 3.333

The attached figure shows the graph for the above equations.