Riješi

a) \(2x + 3y = 9\)
\(5x - y = 2\)

b) \(4x - 2y = \frac{1}{2}\)
\(3x + 7y = 5 \cdot 2\)

c) \(6x + y = 2 \cdot 3\)
\(2x - 4y = -8\)

d) \(-4x + 2y = 3\)
\(3x - 5y = 2\)

e) \(3x - 4y = 5\)
\(2x + y = 2\)

f) \(5x + 4y = 10\)
\(2x - 3y = 2 \cdot 3\)

g) \(5x - 3y = -4\)
\(4x + y = 7\)

h) \(5x + 2y = 6\)
\(3x - y = 1\)

i) \(2x + 2y = 3\)
\(2x - 5y = 1\)

j) \(3x + 4y = 2 \cdot 1\)
\(0x - y = 5\)