16-3X =20-5x
-3X+5x=20-16
2x=4
X=4÷2
X=2
Sustituyendo x
16-3(2)=20-5(2)
16-6=20-10
10=10
Si cumple esta bien x =2
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16-3X =20-5x
-3X+5x=20-16
2x=4
X=4÷2
X=2
Sustituyendo x
16-3(2)=20-5(2)
16-6=20-10
10=10
Si cumple esta bien x =2