Question

gasiti numerele care fac adevarate afirmatiile:
a) 4 x 9 : 6 + 10 = 32 : 8 x a
b) 72 : 8 : 3 = ( 48 - 3 x 7 ) :b

Answer 1

a) 4 x 9 : 6 + 10 = 32 : 8 x a
6+10=4a
16=4a
a=4

b) 72 : 8 : 3 = ( 48 - 3 x 7 ) :b
9:3=(48-21):b
3=27:b
3b=27
b=9

Answer 2

$a)4*9:6+10=32:8*a \\ 36:6+10=4a \\ 6+10=4a \\ a= \frac{6+10}{4}=4 \\ b)72:8:3=(48-3*7):b \\ 3=27:b \\ b= \frac{27}{3}=9.$