[solving equation] (1) 1 / 2x = 3 / 4 (2) 2 / 3x + x = 15)

[solving equation] (1) 1 / 2x = 3 / 4 (2) 2 / 3x + x = 15)

1/2x=3/4
x=3/2
2/3x+x=15
5/3x=15
x=9