Question

Valor de ( X )


$x = 58 + x = 178$

Answer 1

4x + 2y = 178

x + y = 58 ( - 2 )

4x + 2y = 178

+

- 2x - 2y = - 116

------------------------

2x = 62

x = 62/2 → x = 31

x + y = 58

31 + y = 58

y = 58 - 31

y = 27