Răspuns:
Explicație pas cu pas:
x : ( 18 - 12) = 8
x : 6 = 8
x = 8 × 6
x = 48
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f : 5 × 4 = 8
f : 5 = 8 : 4
f : 5 = 2
f = 2 × 5
f = 10
Verific: 10 : 5 × 4 = 2 × 4 = 8
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e × 3 : 6 = 4
e = 4 × 6 : 3 → aplic metoda mersului invers
e = 24 : 3
e = 8
Verific 8 × 3 : 6 = 24 : 6 = 4
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( 13 + a ) : 8 = 7
13 + a = 7 × 8
13 + a = 56
a = 56 - 13
a = 43
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33 - a × 4 = 13
a × 4 = 33 - 13
a × 4 = 20
a = 20 : 4
a = 5
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12 + 8 × i = 36
8 × i = 36 - 12
8 × i = 24
i = 24 : 8
i = 3
Verific: 12 + 8 × 3 = 12 + 24 = 36
