Evaluate the expression when \( b=\frac{4}{7} \) and \( c=-\frac{5}{6} \) \[ 2 c-b \] Write your answer in simplest form. []

Substitute \( b=\frac{4}{7} \) and \( c=-\frac{5}{6} \) into the expression \( 2c-b \). Evaluate the expression by following steps: - step0: Evaluate: \(2c-b\) - step1: Substitute: \(2\left(-\frac{5}{6}\right)-\frac{4}{7}\) - step2: Multiply the numbers: \(-\frac{5}{3}-\frac{4}{7}\) - step3: Reduce fractions to a common denominator: \(-\frac{5\times 7}{3\times 7}-\frac{4\times 3}{7\times 3}\) - step4: Multiply the numbers: \(-\frac{5\times 7}{21}-\frac{4\times 3}{7\times 3}\) - step5: Multiply the numbers: \(-\frac{5\times 7}{21}-\frac{4\times 3}{21}\) - step6: Transform the expression: \(\frac{-5\times 7-4\times 3}{21}\) - step7: Multiply the numbers: \(\frac{-35-4\times 3}{21}\) - step8: Multiply the numbers: \(\frac{-35-12}{21}\) - step9: Subtract the numbers: \(\frac{-47}{21}\) - step10: Rewrite the fraction: \(-\frac{47}{21}\) When \( b=\frac{4}{7} \) and \( c=-\frac{5}{6} \), the expression \( 2c-b \) simplifies to \( -\frac{47}{21} \) or \( -2\frac{5}{21} \) or \( -2.238095 \) in simplest form.