Question

c : d = 3, r 3
c +d =75
a= 2\3 din c
b=4× ( 3: d )
( a + b + d ) - c = ?

Answer 1

$c:d=3 \ rest \ 3 \\\\ \underline{c=3d+3} \\\\\\a=\frac{2}{3}*c= \frac{2}{\not3}* \not3(d+1) \longrightarrow 2(d+1) \\\\ \underline{a=2d+2} \\\\\\ b=4* \frac{3}{d} \longrightarrow \frac{12}{d} \\\\ \underline{b=\frac{12}{d}} \\\\\\\\ (a+b+d)-c= \\\\\ =(2d+2+\frac{12}{d}+d)-(3d+3)= \\\\= (3d^{(d}+2^{(d}+\frac{12}{d})-3d^{(d}-3^{(d}= \\\\= 3d^2+2d+12-3d^2-3d= \\\\=\boxed{12-d}$