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- \documentclass{article}
- \usepackage{amsmath}
- \begin{document}
- \begin{align*}
- %N &= (-9) - (+5) &
- %O &= (+7) - (-8) &
- %P &= (+5) + (-6) &
- %Q &= (-3) + (+2) \\
- N &= \underbrace{\underbrace{(-9)}_{-9} \!\underbrace{{}- (+5)}_{{}-5}}_{-14} &
- O &= \underbrace{\underbrace{(+7)}_{ 7} \!\underbrace{{}- (-8)}_{{}+8}}_{ 15} &
- P &= \underbrace{\underbrace{(+5)}_{ 5} \!\underbrace{{}+ (-6)}_{{}-6}}_{- 1} &
- Q &= \underbrace{\underbrace{(-3)}_{-3} \!\underbrace{{}+ (+2)}_{{}+2}}_{- 1}
- \end{align*}
- \end{document}
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