Question

Me ayudan por favor ​

Answer 1

Respuesta:

$2)3x + 8 + 4x - 1 + x + 5 = 90 \\ 8x + 12 = 90 \\ 8x = 90 - 12 \\ x = 78 \\ x = 9.75 ° \\ \alpha = 3x + 8 = 3 \times 9.75 + 8 = 29.25 + 8 = 37.25 ° \\ \beta = 4x - 1 = 4 \times 9. 75 - 1 = 39 - 1 = 38 ° \\ \gamma = x + 5 = 9.75 + 5 = 14.75 °$

$4)4x + 2 = 18 \\ 4x = 18 - 2 \\ 4x = 16 \\ x = 4 \\ \\ 6y - 9 = 15 \\ 6y = 15 + 9 \\ 6y = 24 \\ y = 4$