please help with only (a) from q1 and (c) from q3

. Use Cramei's rule to solve the following equation systems: (a) 3X12X22 6 (C) 8K17X2=9 '2x1+ x2=11 x1+ \"=3 (b)x1+3x2=3 (d) 5x1+9x2=14 4X1 12:12 3")!131'2: 4 . For each of the equation systems in Prob. 1, find the inverse of the coefficient matrix, and get the solution by the formula x' = xii1d. . Use Cramer's rule to solve the following equation systems: (a) Binx2 =16 (c) 4x+3y22=1 2x2+SX3= 5 x+2y =6 2x1 +3x3= ? 3x + 2:4