Question

Resolver a equação do 1 grau:
a) 3 (4×+2×+2) = 21+3+2×
b) 10+12× = 2 (30+×)

Answer 1

Resposta:

a)

$3(4x + 2x + 2) = 21 + 3 + 2x \\ 12x + 6x + 6 = 24 + 2x \\ 16x = 18 \\ x = \frac{18}{16} = \frac{9}{8}$

b)

$10 + 12x = 60 + 2x \\ 10x = 50 \\ x = 5$

Answer 2

Resposta:

abacaxi 123 a boca de 12 preta do cachorrinho do caixão 23 a boca 1223