ayudenme es de matemáticas
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Respuesta:
1) x + 2= 7 3) x - 4 =3. 5) 2x + 5=9
x=7- 2. x=7. 2x=4
x=5. x=2
2) 2x =12. 4) x/3=5
x=12/2. x=15
x=6