\(\frac{2}{3} + \frac{3k}{4} = \frac{71}{12}\)
LCD ( 3 * 4 ) = 12
Multiply by LCD = 12
\(\frac{2}{3} *12+ \frac{3k}{4} *12= \frac{71}{12} *12\)
Refine :
\(9 k + 8 =7\)
Subtract 8 from both sides:
\(9k+8-8 = 71-8\)
\(9k = 63\)
Divide both sides by 9
\(k= \frac{63}{9}\)
\(k=7\)
hope this helps!
