3 1/2 + 2 1/3 × X = 1 ; X =?
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[tex]3 \frac{1}{2} + 2 \frac{1}{3}x = 1[/tex]
[tex]2 \frac{1}{3}x = 1 - 3 \frac{1}{2} [/tex]
[tex]\frac{7}{3}x = \frac{2}{2} - \frac{7}{2} [/tex]
[tex]\frac{7}{3}x = - \frac{5}{2} [/tex]
[tex]x = - \frac{5}{2} \div \frac{7}{3} [/tex]
[tex]x = - \frac{5}{2} \times \frac{3}{7} [/tex]
[tex]x = - \frac{15}{14} = - 1 \frac{1}{14} [/tex]
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