Considerando a equação 4 x - 2 y = 6 e responda as questões A)...

1) 4x - 2y= 6

4x - 2 (7)= 6

4x - 14= 6

4x= 6+ 14

4x= 20

x= 20/4

x=5

2) 4x - 2y= 6

4(1/2) - 2y=6

2 - 2y= 6

-2y= 6 - 2

-2y= 4

y= 4/-2

y= -2

3) 4x -2y=6

4 (1,5) - 2y= 6

6 - 2y=6

-2y= 6-6

-2y= 0

y= 0/-2

y= 0

4) 4x - 2y=6

4x - 2(3) = 6

4x - 6= 6

4x= 6 + 6

4x= 12

x= 12/4

x= 3