fixed numbering on ex. 2
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2 changed files with 4 additions and 4 deletions
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@ -112,22 +112,22 @@
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\begin{align}
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& b-a=3\land 2a+b=2 \nonumber \\
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\iff\quad & 3a=-1\land 3b=8 \nonumber \\
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\iff\quad & a=-\frac{1}{3}\land b=\frac{8}{3} \nonumber \\
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\iff\quad & a=-\frac{1}{3}\land b=\frac{8}{3} \nonumber
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\end{align}
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\begin{align}
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& b-a=3\land 2a+b=-2 \nonumber \\
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\iff\quad & 3a=-5\land 3b=4 \nonumber \\
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\iff\quad & a=-\frac{5}{3}\land b=\frac{4}{3} \nonumber \\
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\iff\quad & a=-\frac{5}{3}\land b=\frac{4}{3} \nonumber
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\end{align}
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\begin{align}
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& b-a=-3\land 2a+b=2 \nonumber \\
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\iff\quad & 3a=5\land 3b=-4 \nonumber \\
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\iff\quad & a=\frac{5}{3}\land b=-\frac{4}{3} \nonumber \\
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\iff\quad & a=\frac{5}{3}\land b=-\frac{4}{3} \nonumber
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\end{align}
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\begin{align}
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& b-a=-3\land 2a+b=-2 \nonumber \\
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\iff\quad & 3a=1\land 3b=-8 \nonumber \\
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\iff\quad & a=\frac{1}{3}\land b=-\frac{8}{3} \nonumber \\
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\iff\quad & a=\frac{1}{3}\land b=-\frac{8}{3} \nonumber
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\end{align}
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Donc
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