Calcule o X
Calcule o X

Resposta:
x/2 +15 + 3x - 23 = 90
x/2+3x -8 = 90
x/2 + 3x = 90+8
x + 6x = 98
2
7x = 98
2
7x = 98.2
7x = 196
x= 196/7
x = 28°