X-0点七五x=14
解:解方程,此方程的解为x = 56
x - 0.75x = 14
x - (75/100)x = 14
x - (3/4)x = 14
( 4/4)x - ( 3/4)x = 14
(1/4)x = 14
x = 14 ÷ 1/4
x = 14 × 4
∴x = 56
答:此方程的解为x = 56
x - 0.75x = 14
x - (75/100)x = 14
x - (3/4)x = 14
( 4/4)x - ( 3/4)x = 14
(1/4)x = 14
x = 14 ÷ 1/4
x = 14 × 4
∴x = 56
答:此方程的解为x = 56
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第1个回答 2020-02-16
根据题意:X一0. 75X=14
X(1一0.75)=14
X×0.25=14
X=14/0.25=56
X(1一0.75)=14
X×0.25=14
X=14/0.25=56