Question

symplify (m-14)-(m+5)+(m_16)+(m+9)

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Answer 1

$(m - 14) - (m + 5) + (m - 16) + (m + 9) \\ m - 14 - m - 5 + m - 16 + m + 9 \\m - m + m + m = 14 + 5 + 16 - 9 \\ 2m = 26 \\ m = \frac{26}{2} \\ m = 13$