7x-4.8=0.8 8.4x-6x=7.25x+3*0.7=4.6
7x=0.8+4.82.4x=7.25x=4.6-3*0.7
7x=5.6x=7.2/2.45x=2.5
x=5.6/7 x=3 x=2.5/5
x=0.8 x=0.5