Hola
2x+6=20
2x=20 -6
2x=14
x=14 ÷2
x=7
comprobamos =
7+7 +6=
14 + 6=20
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Hola
2x+6=20
2x=20 -6
2x=14
x=14 ÷2
x=7
comprobamos =
7+7 +6=
14 + 6=20