70.2/(?+1.06)=29.25

70.2/(?+1.06)=29.25
?+1.06=70.2/29.25
?+1.06=2.4
?=2.4-1.06
?=1.34

70.2/(?+1.06)=29.25

你要这样开始：

70.2 = 29.25 x ( y + 1.06) 我把？当成是 Y
70.2 = (29.25 x y) + (29.25 x 1.06)
70.2 = 29.25y + 31.005
70.2 - 31.005 = 29.25y
39.195 = 29.25y or 29.25y = 39.195
y = 39.195 / 29.25
y = 1.34

70.2/(?+1.06)=29.25
70.2=29.25(?+1.06)
70.2=29.25?+31.005
70.2-31.005=29.25?
29.25?=39.195
?=39.195/29.25
?=1.34

希望解答到你啦=]]

70.2/(?+1.06)=29.25
?+1.06=70.2/29.25
?+1.06=2.4
?=2.4-1.06
?=1.34

step1: 70.2/(?+1.06)=29.25
step2: 70.2=29.25(?+1.06)
step3: 70.2=29.25?+31.005
step4: (70.2-31.005)/29.25=?
ans: ?=1.34