Hola! :3
Resolvemos:
3x+y=45 lps
3x+15 lps=45 lps
3x=45 lps -15 lps
3x=30 lps
x=10 lps
Cada lápiz costó 10 lps
Espero haberte ayudado :D
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Hola! :3
Resolvemos:
3x+y=45 lps
3x+15 lps=45 lps
3x=45 lps -15 lps
3x=30 lps
x=10 lps
Cada lápiz costó 10 lps
Espero haberte ayudado :D