Question

Solve for x.
3x +1=7
6
Ox=12
O x = 4
x = 16

Answer 1

x = 2

Explanation:

3x + 1 = 7

3x = 7 – 1

3x = 6

x = 6/3

x = 2

Answer 2

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Answer:
`\textsf{x = 2}`

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Given:
`\textsf{3x + 1 = 7}`

Find:
`\textsf{Solve for x}`

Solution: In order to isolate x we need to subtract 1 from both sides and the divide both sides by 3.

Subtract 1 from both sides

• 
  `\textsf{3x + 1 - 1 = 7 - 1}`

• 
  `\textsf{3x = 7 - 1}`

• 
  `\textsf{3x = 6}`

Divide both sides by 3

• 
  `\textsf{3x/3 = 6/3}`

• 
  `\textsf{x = 6/3}`

• 
  `\textsf{x = 2}`

Therefore, the value of x is equal to 2.