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4×70%-5x=0.8怎么解

0.8+5x=4✖️70% 0.8+5x=2.8 5x=2 x=0.4

5×70+5x=850 5x=850-5×70 5x=500 x=100

70=5x乘以0.1 70=0.5x x=140

70 ÷ 5x = 0.1 5x = 70 ÷ 0.1 5x = 700 x = 700 ÷ 5 x = 140 希望我的回答对您有帮助,满意请采纳,谢谢。

70-5+5x=120 65+5x=120 5x=120-65 5x=55 x=55/5 x=11

100-5x=70 100-70=5x 30=5x x=30÷5 x=6

70%x+50=80%(x-50) 0.7x+50=0.8(x-50) 0.7x+50=0.8x-40 0.1x=90 x=900

5.7x=-3.8*70 x=-140/3

5x+9×5=70 5x=70-45 x=25÷5 x=5

解:4×(200-X)=5×(70+X) 800-4X=350+5X 9X=450 X=50

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