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5.5x%x=8.1解方程怎么做

(1)20%X=10, 20%X÷20%=10÷20% x=50;(2)95%X-65%X=9, 30%x=9, 30%x÷30%=9÷30%, x=30;(3)50%X-30%X=5.5, 20%x=5.5, 20%x÷20%=5.5÷20%, x=27.5;(4)X+350%X=90, 450%x=90, 450%x÷450%=9÷450%, x=2;(5)12X+4X=128, 16x=128...

(1)x-30%= 3 4 &nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq; x-0.3=0.75&nbsq;&nbsq;&nbsq; x-0.3+0.3=0.75+0.3&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq;&nbsq; x=1.05;(e)3+70%x=5&nbsq;&nbsq;&nbsq;&nbsq;&nbsq; 3...

(1)x+15%x=4.6 115%x=4.6 115%x÷115%=4.6÷115%, x=4;(2)17.3+40%x=22.517.3+40%x-17.3=22.5-17.3 40%x=5.2 40%x÷40%=5.2÷40% x=13;(3)35x-3.5%x=0.95 0.565x=0.950.565x÷0.565=0.95÷0.565 x=190113.

g

1026-0.095x=0.085x 0.085x+0.095x=1026 0.18x=1026 x=5700

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