Question

ON
5 X + 4 = 49
3 x + 1 = 31
7 X + 1 = 36​

Answer 1

Respuesta:

$5x = 49 - 4\\5x = 45\\x = 45 / 5\\x = 9\\\\3x = 31 - 1\\3x = 30\\x = 30/ 3\\x = 10\\\\7x = 36 - 1\\7x = 35\\x = 35 / 7\\x = 5$

Explicación paso a paso: