Ответ:
Пошаговое объяснение:
1)
x+3 / 65 = 4/13
х + 3 = 65 * 4 / 13
х + 3 = 260/13
х + 3 = 20
х = 20 - 3
х = 17
2)
4 / 3х-11 = 36/63
3х - 11 = 4 * 63 / 36
3х - 11 = 252/36
3х - 11 = 7
3х = 7 + 11
3х = 18
х = 18 : 3
х = 6
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Ответ:
Пошаговое объяснение:
1)
x+3 / 65 = 4/13
х + 3 = 65 * 4 / 13
х + 3 = 260/13
х + 3 = 20
х = 20 - 3
х = 17
2)
4 / 3х-11 = 36/63
3х - 11 = 4 * 63 / 36
3х - 11 = 252/36
3х - 11 = 7
3х = 7 + 11
3х = 18
х = 18 : 3
х = 6