5x - 19 =2y

Question

3y + 18 =4x

Answer 1

5 x - 2 y = 19 times3
4 x - 3 y = 18 times 2
yields
15x - 6 y = 57
8 x - 6 y = 36
--------------------subtract
7 x = 21
x = 3
now it is your turn