设两根绳子原来长 x 米.
3(x - 12)= x + 14
3 x - 36 = x + 14
3 x - x = 14 + 36
2 x = 50
x = 50 ÷ 2
x = 25
答:原来两根绳子长 25 米.
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如果答案对你有所帮助,记得好评哦~~
设两根绳子原来长 x 米.
3(x - 12)= x + 14
3 x - 36 = x + 14
3 x - x = 14 + 36
2 x = 50
x = 50 ÷ 2
x = 25
答:原来两根绳子长 25 米.
==========
如果答案对你有所帮助,记得好评哦~~