Question

resolva a equação 2x + 100 = 15x + 20
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Answer 1

Resposta:

2x + 100 = 15x + 20

<=> 2x - 15x = 20 - 100

<=> -13x = -80

<=> x = -80/13

$< = > x = \frac{ - 80}{ - 13} = \frac{80}{13}$