运算素养课前操 1.解方程 16.5+ x=3.2

2025-06-27 23:54:16
推荐回答(3个)
回答1:

解:16.5+ x=3.2
(16×10 + 5)/10 + x = (3×10 + 2)/10
165/10 + x = 32/10
x = 32/10 - 165/10
x = - 133/10
∴x = -13.3
∴此方程的解为x = -13.3

回答2:

16.5+ x=3.2
x=16.5-3.2
x=13.3
谢谢 ,请采纳

回答3:

16.5+ x=3.2
x=3.2-16.5=-13.3