Multiple Choice Question (MCQ)
If \dfrac{x-1}{3}=k and k=3, what is the value of x?
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×
7
-
×
8
-
×
9
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✓
10
If \dfrac{x-1}{3}=k and k=3, what is the value of x?
7
8
9
10
Since k =3, we can substitute k for 3 in the equation,
\dfrac{x-1}{3}=3
Multiply both sides by 3 to remove the denominator of the fraction
\dfrac{x-1}{3}\cdotp 3 =3\cdotp 3
x-1=9
Adding 1 to both sides gives the final result
x=10
Choice C is correct