Question

Afla numarul necunoscut:3×(420-6×e):64=6

Answer 1

3(420-6e):64=6
3(420-6e)=384
420-6e=128
6e=420-128
6e=292
e=292:6
e=
$\frac{292}{6} = \frac{146}{3}$

Answer 2

3 × ( 420 - 6 × e ) : 64 = 6
( 420 - 6 × e ) : 64 = 6 : 3
( 420 - 6 × e ) : 64 = 2
420 - 6 × e = 2 × 64
420 - 6 × e = 128
6 × e = 420 - 128
6 × e = 292
e = 292 : 6
e = 48, 66