Resposta :
Resposta:
5x - 10 = 40
5x - 10 + 10 = 40 + 10
5x = 50
5x/5 = 50/5
x = 10
Resposta:
5x - 10 = 40
5x - 10 + 10 = 40 + 10
5x = 50
5x/5 = 50/5
x = 10
Resposta:
5x - 10 = 40
5x - 10 + 10 = 40 + 10
5x = 50
5x/5 = 50/5
x = 10
Resposta:
5x - 10 = 40
5x - 10 + 10 = 40 + 10
5x = 50
5x/5 = 50/5
x = 10