1.3.8+x=6.3 ,x=6.3-3.8,x=2.5
2.x-7.9=2.6 ,x=2.6+7.9,x=10.5
3.2.5x=14,x=14/2.5,x=5.6
4.x/3=1.2 ,x=1.2*3,x=3.6
5.3.4x-48=26.8,3.4x=26.8+48,3.4x=74.8,x=22
6.2x-97=34.2,2x=34.2+97,2x=131.2,x=65.6
1.3.8+x=6.3 ,x=6.3-3.8,x=2.5
2.x-7.9=2.6 ,x=2.6+7.9,x=10.5
3.2.5x=14,x=14/2.5,x=5.6
4.x/3=1.2 ,x=1.2*3,x=3.6
5.3.4x-48=26.8,3.4x=26.8+48,3.4x=74.8,x=22
6.2x-97=34.2,2x=34.2+97,2x=131.2,x=65.6