(1)2x+0.4x=48
2.4X=48
2.4X÷2.4=48÷2.4
X=20;
(2)8x-x=14.7
7x=14.7
7x÷7=14.7÷7
x=2.1;
(3)3x+2.7=5.94
3x+2.7-27=5.94-2.7
3x=3.24
3x÷3=3.24÷3
x=1.08;
(4)1.3x-0.44=0.6
1.3x-0.44+0.44=0.6+0.44
1.3x=1.04
1.3x÷1.3=1.04÷1.3
x=0.8.
(1)2x+0.4x=48
2.4X=48
2.4X÷2.4=48÷2.4
X=20;
(2)8x-x=14.7
7x=14.7
7x÷7=14.7÷7
x=2.1;
(3)3x+2.7=5.94
3x+2.7-27=5.94-2.7
3x=3.24
3x÷3=3.24÷3
x=1.08;
(4)1.3x-0.44=0.6
1.3x-0.44+0.44=0.6+0.44
1.3x=1.04
1.3x÷1.3=1.04÷1.3
x=0.8.