Question

se x+ 2y + 3z =14 , 4y+5z=23, 6z =18. determine o valor de x

Answer 1

6z = 18 ⇒ z = 18/3 ⇒ z = 3

4y+5.3 = 23 ⇒ 4y+15 = 23 ⇒ 4y = 8 ⇒ y = 2

x+2.2+3.3 = 14 ⇒ x+4+9=14 ⇒ x = 14-13 ⇒ x = 1