Question

4x-3y=1 and 5x-7y=-2 solve for x using elimination method​

Answer 1

Answer:

X= 1:

Step-by-step explanation:

Answer 2

Answer:

(x,y)=(1,1)

Step-by-step explanation:

4x-3y=1

multiply by 5 on both sides

20x-15y=5_(1)

5x-7y=2

multiply by 4 on both sides

20x-28y=-8_(2)

substract equation 1 and 2

20x-15y=5

20x-28y=-8

- + +

___________

13y=13

y=13/13

y=1

substitute y=1 in equation 1

20x-15*1=5

20x-15=5

20x=5+15

20x=20

x=20/20

x=1

(x,y)=(1,1)