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тан59
@тан59
August 2022
1
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помогите решить 300-77:х=287, 750+10×х=750
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Часур
300-77÷х=287
77÷х=300-287
77÷х=13
х=77÷13
х=77/13
----------------------
300-77÷77/13=287
300-77×13/77=287
300-13=287
287=287
2)750+10×x=750
10x=750-750
10x=0
x=0
---------------------------
750+10×0=750
750=750
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Answers & Comments
77÷х=300-287
77÷х=13
х=77÷13
х=77/13
----------------------
300-77÷77/13=287
300-77×13/77=287
300-13=287
287=287
2)750+10×x=750
10x=750-750
10x=0
x=0
---------------------------
750+10×0=750
750=750