Question

Qual e a resposta da, equação 13x-23-45=-7x+12?

Answer 1

13x+7x=12+23+45

20x= 80

x= 80/20 

x = 4 

Answer 2

13x - 23 - 45 = - 7x + 12
13x + 7x = 12 + 45 + 23
20x = 80
x = 80/20
x = 4