Question

3 + 2 (x: 4-12) = 9
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Answer 1

Răspuns:

3+2(x:4-12)=9

2(x:4-12)=9+3

2(x:4-12)=12

x:4-12=12•2

x:4-12=24

x:4=24+12

x:4=36

x=36•4

x=138

Answer 2

Răspuns:

3 + 2 ( x : 4 - 12 ) = 9

2( x : 4 - 12 ) = 9 - 3

2 ( x : 4 - 12 ) = 6

x : 4 - 12 = 6 : 2

x : 4 - 12 = 3

x : 4 = 3 + 12

x : 4 = 15

x = 15 × 4

x = 60