Question

Resolva a equação : 5x-7=3x+1

Answer 1

5x-7=3x+1
5x-3x=1+7
2x=8
x=8 dividido por 2
x= 4

Answer 2

5x-7=3x+1
5x-3x=1+7
2x=8
x= 8  
     2
x=4
Resposta: 4