davids mass is 5kg less than Sucha's who in return is 8 kg lighter than paul.if their total mass is 197 kg dind how heavy is each ...
$$\begin{bmatrix} 1 & 1 & 1 \\\\ 1 & 1 & 1 \\\\ 1 & k & 1 \end{bmatrix}$$
(3x+2)(x+9)
$$\begin{bmatrix} 1 & 1 & 1 \\\\ 1 & 1 & 1 \\\\ 1 & k & a \end{bmatrix}$$
-5= -3e^(-t+4)*(t+1)
2(3a+11)=4a+38
16-3y=5y
4(9+5x^2)=356
2t^2-72=0
