0.7x-1.71=4.59 1.4x-x=37.2 （x+5）÷7=1.5

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0.7x-1.71=4.59 1.4x-x=37.2 （x+5）÷7=1.5
0.7x-1.71=4.59 1.4x-x=37.2 （x+5）÷7=1.5

0.7x-1.71=4.59 1.4x-x=37.2 （x+5）÷7=1.5
0.7x-1.71=4.59
0.7x=4.59+1.71
0.7x=6.3
x=6.3÷0.7
x=9
1.4x-x=37.2
0.4x=37.2
x=37.2÷0.4
x=93
（x+5）÷7=1.5
x+5=1.5×7
x+5=10.5
x=10.5-5
x=5.5

0.7x=6.3 x=9
0.4x=37.2 x=93
x+5=10.5 x=5.5

0.7x-1.71=4.59 1.4x-x=37.2 （x+5）÷7=1.5 （X+X)+(X-X)+(X*X)+(X/X)=100 1.4x-x=9.8求x x+(x-1.4)+1.5x=33. x-0.7x=64.8求x 2+X=1.4X x+18=1.4x x-0.3x=1.4 x-0.7x=18 x-0.7x=0.51 x-0.7x=1.02 x-0.7x=1. x-0.7x=0.24. x-0.6x=0.7 x-0.7=15x x*x*x*x*x=80000? x*x*x=504 x*x*x=504 （x+x）+(x-x)+(x/x)=11.2