Ответ:
7
Пошаговое объяснение:
4(5/8 - 2 3/4х) - 15(4/5х - 2 1/3) - 37,5 =
4(5/8 - 11/4х) - 15(4/5х - 7/3) - 37,5 =
20/8 - 44/4х - 60/5х + 105/3 - 37,5 =
2,5 - 11х - 12х + 35 - 37,5 =
(-11х - 12х) + (2,5 + 35 - 37,5) =
-23х + 0 = -23х
х = -7/23
-23х = -23 * (-7/23) = -1 * (-7/1) = 7/1 = 7
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Answers & Comments
Ответ:
7
Пошаговое объяснение:
4(5/8 - 2 3/4х) - 15(4/5х - 2 1/3) - 37,5 =
4(5/8 - 11/4х) - 15(4/5х - 7/3) - 37,5 =
20/8 - 44/4х - 60/5х + 105/3 - 37,5 =
2,5 - 11х - 12х + 35 - 37,5 =
(-11х - 12х) + (2,5 + 35 - 37,5) =
-23х + 0 = -23х
х = -7/23
-23х = -23 * (-7/23) = -1 * (-7/1) = 7/1 = 7