2.4x=3.2+1.6
x=(3.2+1.6)/2.4
x=2
7x-4x=2.4
3x=2.4
x=0.8
9.7x-2.7x=35
7x=35
x=5
5x+3x=264
8x=264
x=33
8x-6x=0.15
2x=0.15
x=0.075
0.8x+1.6=5.6
0.8x=5.6-1.6
0.8x=4
x=5