Dunn Little
09/08/2024 · Elementary School
d. \( \frac{1}{2}-\frac{1}{3}=1-\frac{5}{8} x \)
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Tutor-Verified Answer
Step-by-step Solution
To solve the equation
\[
\frac{1}{2} - \frac{1}{3} = 1 - \frac{5}{8} x,
\]
we first simplify the left side. To do this, we need a common denominator for \(\frac{1}{2}\) and \(\frac{1}{3}\). The least common multiple of 2 and 3 is 6.
Rewriting the fractions with a common denominator:
\[
\frac{1}{2} = \frac{3}{6}, \quad \frac{1}{3} = \frac{2}{6}.
\]
Now we can subtract:
\[
\frac{3}{6} - \frac{2}{6} = \frac{1}{6}.
\]
So the equation now looks like:
\[
\frac{1}{6} = 1 - \frac{5}{8} x.
\]
Next, we isolate \(-\frac{5}{8} x\) by subtracting 1 from both sides:
\[
\frac{1}{6} - 1 = -\frac{5}{8} x.
\]
To combine \(\frac{1}{6}\) and \(-1\), we rewrite \(-1\) as \(-\frac{6}{6}\):
\[
\frac{1}{6} - \frac{6}{6} = -\frac{5}{6}.
\]
Now we have:
\[
-\frac{5}{6} = -\frac{5}{8} x.
\]
To eliminate the negative signs, we can multiply both sides by -1:
\[
\frac{5}{6} = \frac{5}{8} x.
\]
Next, we can solve for \(x\) by dividing both sides by \(\frac{5}{8}\):
\[
x = \frac{5/6}{5/8}.
\]
Dividing by a fraction is the same as multiplying by its reciprocal:
\[
x = \frac{5}{6} \cdot \frac{8}{5}.
\]
The \(5\)s cancel out:
\[
x = \frac{8}{6} = \frac{4}{3}.
\]
Thus, the solution is:
\[
\boxed{\frac{4}{3}}.
\]
Quick Answer
The solution is \( x = \frac{4}{3} \).
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