60X+15=60(X-1)谢了啊!

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60X+15=60(X-1)谢了啊!60X+15=60(X-1)谢了啊!60X+15=60(X-1)谢了啊!60x+15=6060x=60-1560x=45x=45除以60x=0.750.75+1=1

60X+15=60(X-1)谢了啊!
60X+15=60(X-1)
谢了啊!

60X+15=60(X-1)谢了啊!
60x+15=60
60x=60-15
60x=45
x=45除以60
x=0.75
0.75+1=1.75