第1个回答 2020-03-14
解:解方程, 此方程的解为x = 869/20,【即x = 43.45】
4x - 4.8 = 169
4x - (4×10+8)/10 = 169
4x - 48/10 = 169
4x - 24/5 = 169
4x = 169 + 24/5
4x = 845/5 + 24/5
4x = 869/5
x = 869/5 ÷ 4
x = 869/5 × 1/4
x = 869/20
∴x = 43.45
答:此方程的解为x = 869/20,【即x = 43.45】本回答被网友采纳