Question

y=2x-2 y=4x-4 by substitution method​

Answer 1

y=2x-2

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

also y = 4x - 4

y = 2(2x) - 4

y = 2(y+2) - 4 from (i)

=2y +4 -4

y = 2y (this is only possible when y=0)

so 2x-2=0

x = 1

Answer 2

y=2x-2

y=4x-4

2x-2=4x-4

4x-2x=4-2

2x=2

x=2/2

x=1

substitute x=1 in

y=2x-2

y=2(1)-2

y=2-2

y=0

CROSS VERIFICATION

y=2x-2

0=2(1)-2

0=2-2

0=0

THEREFORE x=1 y=0

MARK IT BRAINLIEST!!