Question

If 1 - x/169 = 12/13. . Find x

Answer 1

Answer:

$1 - \frac{x}{169 } = \frac{12}{1 3} \\ take \: lcm \: first \\ \frac{169}{169} - \frac{x}{169} = \frac{12}{13 } \\ \frac{169 - x}{169} = \frac{12}{13} \\ cross \: multiplication \\ 13(169 - x) = 12 \times 169 \\ 2197 - 13x = 2028 \\ 2197 - 2028 = 13x \\ 169 = 13x \\ x = 169 \div 13 \\ x = 13$

Answer 2

Answer:

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