①14.59+x-25.31=0x=10.72②x-48.32+78.51=80x=49.81③820-16x=45.5×8x=28.5④(x-6)×7=2xx=8.4⑤3x+x=18x=4.5⑥0.8+3.2=7.2x=5⑦12.5-3x=6.5x=2⑧1.2(x-0.64)=0.54x=1.09⑨x+12.5=3.5xx=5⑩8x-22.8=1.2x=3...