X-1.24+1.76=5
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解:解方程, 此方程的解为x = 112/25,【即x = 4.48】
x - 1.24 + 1.76 = 5
x - (1×100+24)/100 + (1×100+76)/100 = 5
x - 124/100 + 176/100 = 5
x + 52/100 = 5
x + 13/25 = 5
x = 5 - 13/25
x = 125/25 - 13/25
x = 112/25
∴x = 4.48
答:此方程的解为x = 112/25,【即x = 4.48】
x - 1.24 + 1.76 = 5
x - (1×100+24)/100 + (1×100+76)/100 = 5
x - 124/100 + 176/100 = 5
x + 52/100 = 5
x + 13/25 = 5
x = 5 - 13/25
x = 125/25 - 13/25
x = 112/25
∴x = 4.48
答:此方程的解为x = 112/25,【即x = 4.48】
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