Question

D) 10*{24-[20-5*x-3)]:2}=150
va rog repede​

Answer 1

Răspuns:

X = 1

Explicație pas cu pas:

10 x {24 - [ 20 -( 5 x X -3)] :2}= 150

24 - [ 20- ( 5 x X -3)] : 2 = 150 : 10

24 - [ 20 - ( 5 x X - 3) : 2 = 15

[20 - ( 5 x X -3) : 2 = 24 - 15

[ 20 - ( 5 x X - 3) : 2 = 9

20 - ( 5 x X - 3 ) = 9 x 2

20 - ( 5 x X - 3) = 18

( 5 x X - 3 ) = 20 - 18

5 x X - 3 = 2

5 x X = 2 + 3

5 x X = 5

X = 5 : 5

X = 1