Question

Află numerele necunoscute a ×2 = 18
4×b=32
c×3=21
5×d=30​

Answer 1

Răspuns:

a x 2 = 18 => a =18: 2

a= 9

b=8

c=7

d=6

Answer 2

Răspuns:

$2a = 18 \\ a = 18 \div 2 \\ a = 9 \\ \\ 4 b = 32 \\ b = 32 \div 4 \\ b = 8 \\ \\ 3c = 21 \\ c = 21 \div 3 \\ c = 7 \\ \\ 5d = 30 \\ d = 30 \div 5 \\ d = 6$