Question

Ajuda aii gente (4x+6y=2) (4x-10y=-2)​

Answer 1

4×+6Y=2

4×+6y-2=0

2x+3y-1=0

Resposta: 0

4x-10y=-2

4×-10y+2=0

2x-5y+1=0

Resposta:0

Answer 2

4x + 6y = 2

4x - 10y = -2

X = 1/8

y = 1/4

____

4x + 6y = 2

4x = 2 - 6y

x = (2 - 6y)/4

4x - 10y = -2

4(2 - 6y)/2 - 10y = -2

8 - 24y/2 - 10y = -2

8 -24y - 40y = -8

-24y - 40y = -8 + (-8)

-64y = -16

y = -16/-64 = -1/-4 = 1/4

4x + 6y = 2

4x + 6(1/4) = 2

4x + 6/4 = 2

4x + 3/2 = 2

8x + 3 = 4

8x = 4 - 3

x = 1/8

Testando....

4(1/8) + 6(1/4) = 2

4/8 + 6/4 = 2

1/4 + 6/4 = 2

8/4 = 2

2/1 = 2

Certo!!

4(1/8) - 10(1/4) = -2

4/8 - 10/4 = -2

2/4 - 10/4 = -2

-8/4 = -2

-2/1 = -2

Certo!!