Which linear equations have one solution? Check all that apply. 5x – 1 = 3(x + 11)
4(x – 2) + 4x = 8(x – 9)
4(x – 6) + 4 = 2(x – 3)
2(x – 4) = 5(x – 3) + 3
2(x – 1) + 3x = 5(x – 2) + 3

Deja qué x = longitud6(x) = 48cm^2divide por 6: x = 8la área de longitud es 8 cm.

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.