Solve for k. 3/4 k+3/8 k=12
I hope this helps you
3/4 k+3/8 k=12=> 24/32 k + 12/32k = 12=> 36/32 k = 12 => 36k = 12 *32 = 384=> k = 384/36=> k = 32/3 Hope it helps !!!!
