Question

X+y+z= 143 x=y-27 z=x+26 sa se afle x, y, z ?

Answer 1

Răspuns:

$x + y + z = 143$

$x = y - 27 = > y = x + 27$

$z = x + 26$

$x + x + 27 + x + 26 = 143$

$3x = 143 - 53$

$3x = 90$

$x = \frac{90}{3}$

$x = 30$