Question

18) Resolva as equações do 1° grau.
a) 8 ( – 12 ) − 5 ( − 6 ) = 66
b)
3
+

4
= 14

Answer 1

Resposta:

$a)\\8\left(-12\right)-5\left(-6\right)\\=-8\cdot \:12+5\cdot \:6\\=-96+5\cdot \:6\\=-96+30\\=-66\\-66=66\\ falso\\b)\\3+4\\=7\\7=14\\falso$

Answer 2

Falso
Espero ter ajudadooo