Question

−7x−5y=36 x= 2y+3 wjats y and whats x?

Answer 1

Answer:

y = -3 and x = -3

Step-by-step explanation:

-7x-5y = 36.........(1)

2y+3 = x............(2)

since in equation (2), x has already been made subject of formula we will substitute equation (2) in (1)

sub (2)in (1)

-7(2y+3)-5y =36

-14y-21-5y = 36

-14y-5y= 36+21

-19y =57

to make y subject, we divide both sides by -19

-19y_

$- 19 y \19 = 57 \19$

y = -3

sub y in equation (2)

2(-3)+3=x

-6+3=x

-3 =x

this implies that x = -3

therefore, y = -3 and x = -3