RESPUESTA :
x=3
EXPLICACIÓN:
7x+5=2x+20
7x+5-2x=20-5
7x-2x=20-5
5x=20-5
5x=15
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Verified answer
RESPUESTA :
x=3
EXPLICACIÓN:
7x+5=2x+20
7x+5-2x=20-5
7x-2x=20-5
5x=20-5
5x=15
x=3