Question

(200-x)+225=72+(y-32)=z•2+40=250 cum aflam x y si z

Answer 1

Răspuns

Explicație pas cu pas:

( 200 - x ) + 225 = 72 + ( y - 32 ) = z × 2 + 40 = 250

( 200 - x ) + 225 = 250

200 - x = 250 - 225

200 - x = 25

x = 200 - 25

x = 175

_______________

72 + ( y - 32 ) = 250

y - 32 = 250 - 72

y - 32 = 178

y = 178 + 32

y = 210

__________

z × 2 + 40 = 250

z × 2 = 250 - 40

z × 2 = 210

z = 210 : 2

z = 105