解:解方程, 此方程的解为x = 49
0.6X - 2.4 = 27
(6/10)x - (2×10+4)/10 = 27
(3/5)x - 24/10 = 27
(3/5)x - 12/5 = 27
(3/5)x = 135/5 + 12/5
(3/5)x = 147/5
x = 147/5 ÷ 3/5
x = 147/5 × 5/3
∴x = 49
答:此方程的解为x = 49
这是详细步骤
0.6x-2.4=27
0.6x=27+2.4
0.6x=29.4
x=49
解:
0.6x=27+2.4
x=29.4÷0.6
x=49