Question

resolva as equacoes de 1 grau/ a) -3x= -18

Answer 1

a) -3x = -18

-3x = -18  
             

x = 6

Answer 2

a)

$-3x=-18$  $.(-1)$

$3x = 18$

$x=\frac{18}{3}$

$x=6$

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