Question

1. 6x-2y=4
y=5x
2. 2x+4y=10
y=2x
3. -5x+3y=19
y=8x

Answer 1

for number 1

x=-1 y=-5

for number 2

x=1 y=2

for number 3

x=1 y=8

Answer 2

for number 1

x=-1 y=-5

for number 2

x=1 y=2

for number 3

x=1 y=8

Explanation: