4 years ago

Solve the equation 3x -1 =20

2 answers:

7 0

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

mylen [45]4 years ago

3 0

3x-1=20
3*7=21-1=20
The answer would be x=7

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