1.8x+2.7x等于1.17 x等于ds

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1.8x+2.7x等于1.17x等于ds1.8x+2.7x等于1.17x等于ds1.8x+2.7x等于1.17x等于ds1.8x+2.7x=1.174.5x=1.17x=1.17÷4.5x=0.261

1.8x+2.7x等于1.17 x等于ds
1.8x+2.7x等于1.17 x等于ds

1.8x+2.7x等于1.17 x等于ds
1.8x+2.7x=1.17
4.5x = 1.17
x =1.17÷4.5
x=0.26

1.8x+2.7x=1.17
4.5x=1.17
x=1.17÷4.5
x=0.26

1.17/(1.8+2.7)=0.26

因为x等于ds
所以1.8ds+2.7ds=1.17
4.5ds=1.17
ds=1.17÷4.5
ds=0.26