Answer :
[tex] \left \{ {{4x + 3y = 5 } \atop {2x - 3y = 7}} \right. [/tex]
6x = 12
x = 2
4*2 + 3y = 5 -> 8 + 3y = 5 -> 3y = 5 - 8 -> 3y = -3 -> y = -1
2*2 - 3y = 7 -> 4 - 3y = 7 -> -3y = 7-4 = -3y = 3 -> y = -1
x = 2
y = -1
6x = 12
x = 2
4*2 + 3y = 5 -> 8 + 3y = 5 -> 3y = 5 - 8 -> 3y = -3 -> y = -1
2*2 - 3y = 7 -> 4 - 3y = 7 -> -3y = 7-4 = -3y = 3 -> y = -1
x = 2
y = -1