Question

$\frac{5x + 3}{10} = \frac{ - 21}{30}$
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Answer 1

Resposta:

x=-2

Explicação passo-a-passo:

(5x+3)/10=-21/30

30.(5x+3)=10.(-21)

150x+90=-210

150x=-210-90

150x=-300

x=-300/150

x=-2