Question

5)calcula "2×"
6)calcula "x"​

Answer 1

Respuesta:

$5)x + 40 + x + 90 = 180 \\ 2x +130 = 180 \\ 2x = 180 - 130 \\ 2x = 50 \\ x = 25 °$

$6)x + x + 30 = 360 - 300 \\ 2x + 30 = 60 \\ 2x = 60 - 30 \\ 2x = 30 \\ x = 15°$