Question

Resolva as equações de 1º grau: a) X + 2 = 8 b) 2y + y + 1 = 10 c) 3x + 4 = 16

Answer 1

→ Equação do primeiro grau com uma incógnita :

A)

$\large{x+2=8}$

$\large{x=8-2}$

$\large\boxed{\boxed{\red{x=6}}}$

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B)

$\large2y + y + 1 = 10$

$\large3y + 1 = 10$

$\large3y=10-1$

$\large3y=9$

$\large{y=\frac{9}{3}}$

$\large\boxed{\boxed{\red{y=3}}}$

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C)

$\large3x + 4 = 16$

$\large3x =16-4$

$\large3x =12$

$\large{x=\frac{12}{3}}$

$\large\boxed{\boxed{\red{x=4}}}$

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Att, PurpleStars ❤️