Respuesta:Hola Espero te sirva
8a+9a=17a
(8+9)a
17a
x+2x=3x
1x+2x
(1+2)x
3x=3x
11b+9b=20b
(11b+9)b
20b
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Verified answer
Respuesta:Hola Espero te sirva
8a+9a=17a
(8+9)a
17a
x+2x=3x
1x+2x
(1+2)x
3x=3x
11b+9b=20b
(11b+9)b
20b