Question

Please answer my question please please answer my question

Answer 1

Answer:

x = 5; y = -12

Step-by-step explanation:

Given:

3x + y = 3

y = 3 - 3x -- equation (1)

xy = -60 -- equation (2)

Substitute "y" value in equation (2).

x( 3 - 3x) = -60

3x - 3x² + 60 = 0

-3x² + 3x + 60 = 0

-3(x² - x - 20) = 0

x² - x - 20 = 0

x² - 5x + 4x - 20 = 0

x( x - 5) + 4 (x - 5) = 0

(x+4)(x - 5) = 0

x + 4 = 0

x = -4

x - 5 = 0

x = 5

Here +ve value is taken because in the question the value of x is +ve.

Hence, x = 5

Substitute x value in equation (1).

y = 3 - 3x

y = 3 - 3(5)

y = 3 - 15

y = -12.