Question

1)1350+5 (y+100)=15(y-10)-589=
2)9(z-73)-8(z+375)=238-11(z-7)=
3)17(x+13)-19(x-21)+249=25(5x53)-3(7x+576)=
4)8(у-325)-17 (у+940)=6(1096-y)-94 (y-17)
5)85z-27-19(1-z)=43 (1-z)+91+91z=

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Answer 1

Пошаговое объяснение:

1) 1350+5y+500=15y-150-589

1850+739=15y+5y

2589=20y

y=2589:20=129,45

2) 9z-657-8z-3000=238-11z+77

12z=315+3657

12z=3972

z=331