Question

Verifique se as equacoes abauxo sao equivalente a) 2x+3=5
x-2=2 b)10z-15=5z
5z=20

Answer 1

Resposta:

A) 2X + 3 = 5

2X = 5 - 3

2X = 2

X = 2/2

X = 1

X - 2 = ?

1 - 2 = 1 ( SIM SÃO EQUIVALENTES )

B) 10Z - 15 = 5Z

10Z - 5Z = 15

5Z = 15

Z = 15/5

Z = 3

5Z = 20 ( NAO SÃO EQUIVALENTES )