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nurailym20031
@nurailym20031
July 2022
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3x-(8+9x)-(5x-4)=-7x
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arsus223
3x-(8+9x)-(5x-4)=-7x.
Решение:
3х-8-9х-5х+4=-7х
3х-9х-5х+7х=+8-4
-4х=4
4х=-4
х=-4/4=-1.
3 votes
Thanks 9
natashagluz
3x-8-9x-5x+4=-7x(раскрытие скобок)
3x-9x-5x+7x=8-4
-4x=4
x=-1
1 votes
Thanks 3
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Answers & Comments
Решение:
3х-8-9х-5х+4=-7х
3х-9х-5х+7х=+8-4
-4х=4
4х=-4
х=-4/4=-1.
3x-9x-5x+7x=8-4
-4x=4
x=-1