来自黄龙军的问题
解方程：2.5x+3x=11.14x-15.5=4.51-5x=0.4x-0.05x=5.724+8x=1205.6x+2.2=30.23x+2.7=5.941.3x-0.44=0.66.解方程：2.5x+3x=11.14x-15.5=4.51-5x=0.4x-0.05x=5.724+8x=1205.6x+2.2=30.23x+2.7=5.941.3x-0.44=0.66.7x+x=23.1x-0.1x=1.084.5x÷3=0.9（7-1.4）x+5=
解方程：2.5x+3x=11.14x-15.5=4.51-5x=0.4x-0.05x=5.724+8x=1205.6x+2.2=30.23x+2.7=5.941.3x-0.44=0.66.
解方程：
2.5x+3x=11.14x-15.5=4.51-5x=0.4x-0.05x=5.724+8x=1205.6x+2.2=30.23x+2.7=5.941.3x-0.44=0.66.7x+x=23.1x-0.1x=1.084.5x÷3=0.9（7-1.4）x+5=7.8．
