一道解方程【过程全写出来】 (1+1/25)x+(1-1/35)×(1450-x)=1460
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一道解方程【过程全写出来】 (1+1/25)x+(1-1/35)×(1450-x)=1460
一道解方程【过程全写出来】 (1+1/25)x+(1-1/35)×(1450-x)=1460
一道解方程【过程全写出来】 (1+1/25)x+(1-1/35)×(1450-x)=1460
x+1/25x+1450-x-290/7+1/35x=1460
(1+1/25-1+1/35)x=1460-1450+290/7
x=750
(1+1/25)x+(1-1/35)×(1450-x)=1460
26/25x+(34/35)×(1450-x)=1460
26/25x+(34/35)×1450-(34/35)x=1460
(26/25-34/35)x+34*290/7=1460
(2/175)x+34*290/7=1460
2x+34*290*25=1460*175
2x=1460*175-34*290*25
x=4500
(1+1/25)x+(1-1/35)×(1450-x)=1460
26/25x+(34/35)×(1450-x)=1460
26/25x+(34/35)×1450-(34/35)x=1460
(26/25-34/35)x+34*290/7=1460
(2/175...
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(1+1/25)x+(1-1/35)×(1450-x)=1460
26/25x+(34/35)×(1450-x)=1460
26/25x+(34/35)×1450-(34/35)x=1460
(26/25-34/35)x+34*290/7=1460
(2/175)x+34*290/7=1460
2x+34*290*25=1460*175
2x=1460*175-34*290*25
解之得 x=4500
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