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\(7 + 49 = \ldots\)

\(\begin{align} & 7 + 49 \\= & 49 + 7 \\= & 49 + \color{green}{1} + \color{red}{6} \\= & \color{green}{50} + \color{red}{6} \\= & \color{red}{56} \end{align}\)