Question

2x+y=24
x+2y=-24
solve by substitution

Answer 1

Answer:

x = 24

y = -24

See attachment .....

hope it helps...

Answer 2

Answer :  Value of x = 24 and y = -24

Explanation :

Given,

To substitute the equations,

2x+y = 24           ( equation 1 ) x =

y = 24-2x          ( equation 2 )

x + 2y = - 24     ( equation 3 )

putting the value of equation 2 in equation 3.

x + 2 ( 24 - 2x ) = -24

x + 48 - 4x = -24

- 3x = -24 -48

- 3x =  - 72

3x = 72

x = 72/3

x = 24    

Now putting the value of x in equation 1

2x + y = 24

2(24) + y = 24

48 + y = 24

y = 24-48

y = -24