Question

Solve the system using elimination 4x-7y=3
x-7y=-15

Answer 1

the answer is 6,3
.......

Answer 2

Answer: x=6 and y=3

Explanation:

4x - 7y = 3 -------(1)

x - 7y = -15 ------(2)

equation(1) - equation (2)

3x = 18

Divide bothside by 3

x = 18/3

x= 6

also, multiply equation (2) by 4

4x - 28y = -60--------------(3)

subtract equation(3) from equation(1)

21y = 63

divide bothside by 21

y = 63/21

y = 3