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Ayka17
@Ayka17
August 2022
2
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как найти (х-50)+(х+70)+(х+100)=870?
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aginastya
Verified answer
х-50+х+70+х+100=870
х+х+х=870+50-70-100
3х=750
х=750:3
х=250
3 votes
Thanks 9
Ayka17
Спасибо @aginastya
Ayka17
а ка решить уравнение 6(x+4)=3-2x
olya115153
(x-50)+(x+70)+(x+100)=870
x-50+x+70+x+100=870
3x+120=870
3x=870-120
3x=750
x=750/3
x=250
ответ: 250
4 votes
Thanks 5
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Answers & Comments
Verified answer
х-50+х+70+х+100=870
х+х+х=870+50-70-100
3х=750
х=750:3
х=250
x-50+x+70+x+100=870
3x+120=870
3x=870-120
3x=750
x=750/3
x=250
ответ: 250