(2*x + 5) * 3 = 15
2*x+5=15:32*x+5=5
2*x=5-5
2*x=0
x=0:2
x=0
(49-11*x):3=9
49-11*x=9*3
49-11*x=27
11*x= 49-27
11*x=22
x=22:11
x=2
(2*x + 5) * 3 = 15
2*x+5=15:32*x+5=5
2*x=5-5
2*x=0
x=0:2
x=0
(49-11*x):3=9
49-11*x=9*3
49-11*x=27
11*x= 49-27
11*x=22
x=22:11
x=2