Question

Resolva

A) 3×-×-1=3
B) (2×)×-3=16
C) 9.5×-2=45

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Answer 1

Resposta:

*2x-1=3

2x=3-1

2x=2

x=2/2

x=1

*2x-3=16

2x=16+3

2x=19

x=19/2

x=6,33

*45x-2=45

45x=45+2

45x=47

x=47/45

x=1,044