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ulmak983
@ulmak983
September 2021
1
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СРОЧНО НУЖНО ЗАДАНИЕ ВОТ ДАМ 40 БАЛЛОВ И ПОДПИСКУ ПОЛНЫЙ ПРАВЕЛЬНЫЙ ОТВЕТ
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evvoronina1
1) х + 5/7 = (-3/8) • 1 1/3
х + 5/7 = - 3/8 • 4/3
х + 5/7 = -2
х = -2 - 5/7
х = - 2 5/7
2) у - 7/12 = 3 1/2 • (-4/7)
у - 7/12 = 7/2 • (-4/7)
у - 7/12 = -1/2
у = 7/12 - 1/2
у = 7/12 - 6/12
у = 1/12
3) (-6 2/3) • (-1 1/5) + х = - 0,5
(-20/3) • (-6/5) + х = -0,5
8 + х = -0,5
х = -0,5 - 8
х = -8,5
4) (-5/14) • 21/25 - у = 3 3/4
-3/10 - у = 3 3/4
-у = 3 3/4 + 3/10
-у = 3 15/20 + 6/20
-у = 3 + 21/20
-у = 3 + 1 + 1/20
-у = 4 1/20
у = -4 1/20
у = -4,05
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Report "СРОЧНО НУЖНО ЗАДАНИЕ ВОТ ДАМ 40 БАЛЛОВ И ПОДПИСКУ ПОЛНЫЙ ПРАВЕЛЬНЫЙ ОТВЕТПервое ..."
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Answers & Comments
х + 5/7 = - 3/8 • 4/3
х + 5/7 = -2
х = -2 - 5/7
х = - 2 5/7
2) у - 7/12 = 3 1/2 • (-4/7)
у - 7/12 = 7/2 • (-4/7)
у - 7/12 = -1/2
у = 7/12 - 1/2
у = 7/12 - 6/12
у = 1/12
3) (-6 2/3) • (-1 1/5) + х = - 0,5
(-20/3) • (-6/5) + х = -0,5
8 + х = -0,5
х = -0,5 - 8
х = -8,5
4) (-5/14) • 21/25 - у = 3 3/4
-3/10 - у = 3 3/4
-у = 3 3/4 + 3/10
-у = 3 15/20 + 6/20
-у = 3 + 21/20
-у = 3 + 1 + 1/20
-у = 4 1/20
у = -4 1/20
у = -4,05