Răspuns :
6a+9a=48=15a; 2a+3a=5a= 15a:3=48:3=16; 12a+18a=30a =15a•2=48•2=96;
30a+45a=75a=15a•5=48•5=240. Sper ca te-am ajutat
6a+9a=48⇒15a=48⇒a=48:15⇒a=3.2
2a+3a=5a⇒3.2x5=16
12a+18a=30a⇒3.2x30=96
30a+45a=75a⇒3.2x75=240
Sper ca te-am ajutat !
2a+3a=5a⇒3.2x5=16
12a+18a=30a⇒3.2x30=96
30a+45a=75a⇒3.2x75=240
Sper ca te-am ajutat !