Question

como eu resolvo essa conta ??!!

Answer 1

$(-\frac{7}{8}y-(-\frac{ \sqrt{16} }{4}y)-(\frac{3}{\sqrt{64}}y)=48\\ \\ -\frac{7}{8}y-(-\frac{4}{4}y)-(\frac{3}{8}y)=48\\ \\ -\frac{7}{8}y+y-\frac{3}{8}y=48\\ \\ (-\frac{7}{8}+1-\frac{3}{8})y=48\\ \\ -\frac{1}{4}y=48\\ \\ -y=192\\ \\ \boxed{y=-192}$