решите уравнение 76-45x=94x-341, 62x-256=114-38x, 351-92x=51-72x, 17•(5+x)-20x=8...

July 2022 2 62 Report

решите уравнение 76-45x=94x-341, 62x-256=114-38x, 351-92x=51-72x, 17•(5+x)-20x=8x-14, 24x-12(7+x)=16-8x

tatianagri2013 76-45x=94x-341,
-45х-94х=-341-76
-139х=-417
х=-417:(-139)
х=3

62x-256=114-38x,
62х+38х=114+256
100х=370
х=370:100
х=3,7

351-92x=51-72x,
-92х+72х=51-351
-20х=-300
х=-300:(-20)
х=15

17•(5+x)-20x=8x-14,
85+17х-20х=8х-14
17х-20х-8х=-14-85
-11х=-99
х=-99:(-11)
х=9

24x-12(7+x)=16-8x
24х-84-12х=16-8х
24х-12х+8х=16+84
20х=100
х=100:20
х=5

5 votes Thanks 8

ENDEprom 76-45x=94x-341
-45x-94x=-341-76
-139x=-417
x=-417:(-139)
x =3

6 votes Thanks 7

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