Question

8. Identifique as incógnitas
a 2x + 8 = 0
b) 5y – 4 = 6y + 8
c) 3a - b -c=0​

Answer 1

Resposta:

a)x= -8/2

x= -4

b)5y-6y=8+4

-y=12

y=-12