54 • × +96 = 204 780 ÷ (×-7)=78

Question

54 • × +96 = 204
780 ÷ (×-7)=78

Answer 1

54 * x + 96 = 204
54 * x = 204-96
54 * x = 108
x = 108 / 54 
x = 2.
Ответ: 2.
 780 / (x - 7) = 78
x - 7 = 780 / 78
x - 7 = 10
x = 10 + 7
x = 17,
Ответ:17.

Answer 2

54х+96=204
54х=204-96
54х=108
х=108:54
х=2

780:(х-7)=78
х-7=780:78
х-7=10
х=10+7
х=17