14.59+x-25.31=0 x=10.72x-48.32+78.51=80 x=49.81820-16x=45.5×8 x=28.5(x-6)×7=2x x=8.43x+x=18 X=4.50.8x+2.2=6.6 x= 1112.5-3x=6.5 x=21.2(x-0.64)=0.54 x=1.09x+12.5=3.5x x=58x-22.8=1.2 x=3
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