x+4x=2
2x+4=3
5x+7=11x+3
10x+5-3x+2=3x+4
8+3x-2=10
x-4=7
10x+4=8
12x=3x+2
x+3-2x=4
6x-4+5x=2x+15
19/9
4/10
-1/2
-1
2/5
2/9
-3/4
2/3
11
4/3
