Question

Vă rog frumos! Dau coroană ​

Answer 1

Răspuns:

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Answer 2

Răspuns:

a)5x-2x=21

x=21/3

x=7

b)7x+x=-48

X=-48/8

x=-6

c)-3x-2x=-30

x=30/5

x=6

d)-x-6x=-56

x=56/7

x=8

e)-x+7x=-42

x=-42/6

x=-7

f)-x-2x=27

x=27/-3

x=-9