Phanxotroyler
Phanxotroyler
17-11-2015
Mathematics
contestada
Solve the equation 3x -1 =20
Respuesta :
Cindie17
Cindie17
17-11-2015
3x-1=20
3*7=21-1=20
The answer would be x=7
Answer Link
julieharris16
julieharris16
17-11-2015
although the answer from Cindie17 is correct you can also do this:
3x-1=20, subtract 1 from both sides and get 3x=21, then divide both sides by 3 so 3x/3= x and 21/3=7
thus, x=7
Answer Link
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