Explicación paso a paso:
5x-9=3x+5
5x-3x=5+9
2x=14
x = 7
5x+2=3x+8
5x-3x=8-2
2x = 6
x = 3
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Explicación paso a paso:
5x-9=3x+5
5x-3x=5+9
2x=14
x = 7
5x+2=3x+8
5x-3x=8-2
2x = 6
x = 3