Question

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

Answer 1

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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.

Answer 2

Answer:

x = 2

Step-by-step explanation:

3x + 1 = 7

3x = 7 – 1

3x = 6

x = 6/3

x = 2