Tentukan nilai x,,, tolong ya. Makasih

C)
15 = (x × 6) + (12 × 8) / (6+8)
15 = 6x+96 / 14
15 × 14= 6x + 96
210 = 6x +96
210-96 = 6x
114 = 6x
114/6 = x
19 = x

D)
13 = ( x × 6 ) + ( 9 × 4 ) / (6+4)
13 = 6x + 36 /10
13 × 10 = 6x + 36
130 = 6x + 36
130 - 36 = 6x
94 = 6x
94/6 = x
15,67 = x

E)
20 = ( 23 × x ) + ( 13 × 3 ) / (x+3)
20 × (x+3) = 23x + 39
20x + 60 = 23x + 39
60-39 = 23x-20x
21 = 3x
21/3 = x
7 = x

C)
15 = (x × 6) + (12 × 8) / (6+8)
15 = 6x+96 / 14
15 × 14= 6x + 96
210 = 6x +96
210-96 = 6x
114 = 6x
114/6 = x
19 = x

D)
13 = ( x × 6 ) + ( 9 × 4 ) / (6+4)
13 = 6x + 36 /10
13 × 10 = 6x + 36
130 = 6x + 36
130 - 36 = 6x
94 = 6x
94/6 = x
15,67 = x

E)
20 = ( 23 × x ) + ( 13 × 3 ) / (x+3)
20 × (x+3) = 23x + 39
20x + 60 = 23x + 39
60-39 = 23x-20x
21 = 3x
21/3 = x
7 = X

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