5x+(x-240)/8*5=8x求解5x+(x-240)/8*5=8x.

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5x+(x-240)/8*5=8x求解5x+(x-240)/8*5=8x.5x+(x-240)/8*5=8x求解5x+(x-240)/8*5=8x.5x+(x-240)/8*5=8x求解5x+(x-2

5x+(x-240)/8*5=8x求解5x+(x-240)/8*5=8x.
5x+(x-240)/8*5=8x求解
5x+(x-240)/8*5=8x.

5x+(x-240)/8*5=8x求解5x+(x-240)/8*5=8x.
两边乘以8
40x+5x-1200=64x
19x=-1200
x=-1200/19
=-63又3/19

5x+(x-240)/8*5=8x
40x+5(x-240)=64x
40x+5x-1200=64x
40x+5x-64x=1200
-19x=1200
x=-1200/19