Question

E essa?
10 x +100= 9x + 10

Answer 1

• 10x - 9x = 10 - 100
• x = -90

Answer 2

$\large{10x + 100 = 9x + 10}$

$\large{10x - 9x = 10 - 100}$

$\large \boxed{ \boxed{{ \red{x = - 90}}}}$

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Att, IzabelaCristina2006 ❤️ ♈