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\frac{2\left(3x-1\right)}{10}-\frac{x+3}{10}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 5 and 10 is 10. Multiply \frac{3x-1}{5} times \frac{2}{2}.
\frac{2\left(3x-1\right)-\left(x+3\right)}{10}
Since \frac{2\left(3x-1\right)}{10} and \frac{x+3}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{6x-2-x-3}{10}
Do the multiplications in 2\left(3x-1\right)-\left(x+3\right).
\frac{5x-5}{10}
Combine like terms in 6x-2-x-3.
\frac{2\left(3x-1\right)}{10}-\frac{x+3}{10}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 5 and 10 is 10. Multiply \frac{3x-1}{5} times \frac{2}{2}.
\frac{2\left(3x-1\right)-\left(x+3\right)}{10}
Since \frac{2\left(3x-1\right)}{10} and \frac{x+3}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{6x-2-x-3}{10}
Do the multiplications in 2\left(3x-1\right)-\left(x+3\right).
\frac{5x-5}{10}
Combine like terms in 6x-2-x-3.