Question

x+y=6 x-y-2 qual e a resposta gentee

Answer 1

x+y=6
x-y=2

x+x= 6+2
2x= 8
x= 4

4+y=6
y=6-4
y=2

3.4-2= 12-2= 10

3a-b é igual a 10.

Answer 2

x + y = 6
x - y = 2

x = 6 - y
x = 2 + y

2 + y = 6 - y
y + y = 6 - 2
2y = 4
y = 4/2
y = 2

x = 2 + y
x = 2 + 2
x = 4