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x/2-6=3
x/2=6+3
x/2=9
x=9 * 2
x=18
prueba
x=18
18/2-6=3
9-6=3
3=3
correcto
2x+(2x+2)=22
4x=22-2
4x=20
x=20/4
x=5
prueba
x=5
2(5)+(2(5)+2)=22
10+12=22
22=22
correcto
saludos
x/2 = 3 + 6
x/2 = 9
x = 2 (9)
x = 18
Respuesta.
x = 18
2x + (2x + 2) = 22
2x + 2x + 2 = 22
4x + 2 = 22
4x = 22 - 2
4x = 20
x = 20/4
x = 5
Respuesta.
x = 5