Question

Vă rooog aceste doua ecuații

Answer 1

a) x*4,05+x*4,05=10,53
x*(4,05+4,05)=10,53
x*8,1=10,53
x=10,53 : 8,1
x=1,3
b) x*11,6=37,12
x=37,12:11,6
x=3,2

Answer 2

X×1.5×2.7+4.05×X=10.53⇒1.5X*2.7+4.05X=10.53⇒4.05X+4.05X=10.53⇒
8.1X=10.53⇒X=10.53/8.1⇒X=1.3
X(6.24+5.36)=37.12⇒X(11.6)=37.12⇒11.6X=37.12⇒X=37.12/11.6⇒X=3.2
SUCEES