Question

4x + 2y = 12
x - y = 3

Answer 1

Explanation:

4x+2y= 12 (1)

x-y= 3 (2)

From (2):

x= y+3 (3)

sub (3) into (1):

4(y+3)+2y= 12

4y+12+2y= 12

6y= 0

y=0 (4)

sub (4) into (2):

x-0= 3

x= 3

x= 3 and y= 0