Question

9) -9x - 13 - y = 0
7=-y-3x

Answer 1

Answer:

The value of x and y  is ,

x = $\frac{-5}{3}$   and  y = 2  

Step-by-step explanation:

The given two linear equation can be written as ,

y + 9x = -13            ....1     and

y - 3x = 7              .....2

Put the value of y from eq 1 into eq 2

i.e (-13 -9x) - 3x = 7

or, -12x = 7 +13

Or, -12x = 20

i.e X = $\frac{-5}{3}$

Now put t his value of x in any above two linear equation

Let put this value on eq 2 to get value of y

so its can be writen as.

y = 3x + 7

or, y = 3($\frac{-5}{3}$) + 7

or, y = -5 +7

i.e Y = 2

Hence the value of x and y  is , x = $\frac{-5}{3}$  and y = 2  Answer