Question

a:3+a:4=21,35

Answer 1

Nhầm giải lại :

a x \(\frac{1}{3}\)+ a x \(\frac{1}{4}\)= 21,35

a (\(\frac{1}{3}\)+\(\frac{1}{4}\)) = 21,35

a = 21,35 x \(\frac{12}{7}\)

a = 36,6

Answer 2

a : 3 + a : 4 = 21,35

a : ( 3 + 4 ) = 21,35

a : 7 = 21,35

a = 21,35 x 7

a =  149,45

Answer 3

a : (3 x 4) = 21,35

a = 21,35 x 12

a = 256,2

Answer 4

a:3+a:4=21,35

<=>a:(3+4)=21,35

<=>a:7=21,35

=>a=21,35 . 7

=> a= 149,45