фото пожалуйста ❤️4. Реши уравнения.
x : 6 = 45 – (18 + 12)
х+40 = 24 - 3
7-y= 100 — 9
x : 6 = 45 – (18 + 12)
х+40 = 24 - 3
7-y= 100 — 9
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Ответ:
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1)x:6 = 45-(18 + 12)
х:6=45-30
х:6=15
х=15•6
х=90
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2)х+40 = 24 - 3
х+40=21
х=21-40
х=-19
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3)7-y= 100-9
7-у=91
у=7-91
у=-84
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