Resposta :
5x10=5+10-3x
50 = 15 - 3x
-3x = 50 - 15
-3x = 35
x=-35/3
3x=30
x =10
x2=16
x1= -4
x2= 4
50 = 15 - 3x
-3x = 50 - 15
-3x = 35
x=-35/3
3x=30
x =10
x2=16
x1= -4
x2= 4