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3x + 2 = x + 8

A.
1.5

B.
2.5

C.
3

D.
5

1 answer

To solve the equation 3x + 2 = x + 8, you need to isolate the variable x.

Subtract x from both sides of the equation:
3x - x + 2 = x - x + 8
2x + 2 = 8

Subtract 2 from both sides of the equation:
2x + 2 - 2 = 8 - 2
2x = 6

Divide both sides of the equation by 2:
2x/2 = 6/2
x = 3

The solution to the equation 3x + 2 = x + 8 is x = 3.

Therefore, the answer is C. 3.