Question

Resolva o sistema de equações A)5x-3y=4 5x+3y=5 B) x + 4y=6 2x+2y=6

Answer 1

A)

5x-3y=4

5x+3y=5

10x=9

x=9/10

5.9/10-3y=4

9/2-3y=4

9-6y/2=4

9-6y=8

-6y=8-9

-6y=-1

y=1/6

B)

x+4y=6

2x+2y=6

x=6-4y

12-8y+2y=6

12-6y=6

-6y=-18

y=18/6

y=3

x=6-4y

x=6-12

x=-6