解方程(x+14)*14/2=117.6对吗14x+196/2=117.614x+98=117.614x=19.6x=1.4

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解方程(x+14)*14/2=117.6对吗14x+196/2=117.614x+98=117.614x=19.6x=1.4

解方程(x+14)*14/2=117.6对吗14x+196/2=117.614x+98=117.614x=19.6x=1.4
解方程(x+14)*14/2=117.6
对吗14x+196/2=117.6
14x+98=117.6
14x=19.6
x=1.4

解方程(x+14)*14/2=117.6对吗14x+196/2=117.614x+98=117.614x=19.6x=1.4
不对,7x+98=117.6
7x+98=117.6
7x=19.6
x=2.8