How do you solve $\frac{5 q - 7}{12} = \frac{2}{3}$ $\frac{5q-7}{12} = \frac{2}{3}$ ?

Question

9121 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2014-09-28T14:30:36

This can be solved using cross multiplication;

$\frac{5 q - 7}{12} = \frac{2}{3}$ $(5q -7 ) / 12 = 2/3$

$(5 q - 7) \cdot 3 = 2 \cdot 12$ $(5q -7) * 3 = 2 * 12$

$15 q - 21 = 24$ $15 q - 21 = 24$

adding $21$ $21$ to both sides ;

$15 q - 21 + 21 = 24 + 21$ $15 q -21 + 21 = 24 + 21$

$15 q = 45$ $15q = 45$

dividing both sides by $15$ $15$

$\frac{15 q}{15} = \frac{45}{15}$ $(15 q) / 15 = 45 /15$

$q = 3$ $q = 3$

How do you solve 5q−712=23\frac{5q-7}{12} = \frac{2}{3}?