Solve each of the following systems of equations.
(a). 0.4x +1.5y =16.8
1.1x − 0.9y = 6.0
(b). 6.5x + 3.5y =128
2.5x + 4.5y =106
(c). 2.4x + 1.6y = 7.60
3.8x + 0.6y = 7.20
(d). 2.25x + 0.75y = 2.25
1.25x +1.75y = 2.05
(e). 3x/4 – 2y/3 = -13/6
4x/5 + 3y/4 = 123/10