用一元一次方程去括号和去分母的解法,括号表示是一起的!解方程:1.(5-7x)/8=(7-x)/7 2.((1-y)/3)-y=3-((y+2)/2)3.((x+4)/0.2)-((x-3)/0.5)=-1.34.((5-0.1x)/1.2)-((x-0.1)/2.4)=
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![用一元一次方程去括号和去分母的解法,括号表示是一起的!解方程:1.(5-7x)/8=(7-x)/7 2.((1-y)/3)-y=3-((y+2)/2)3.((x+4)/0.2)-((x-3)/0.5)=-1.34.((5-0.1x)/1.2)-((x-0.1)/2.4)=](/uploads/image/z/988161-33-1.jpg?t=%E7%94%A8%E4%B8%80%E5%85%83%E4%B8%80%E6%AC%A1%E6%96%B9%E7%A8%8B%E5%8E%BB%E6%8B%AC%E5%8F%B7%E5%92%8C%E5%8E%BB%E5%88%86%E6%AF%8D%E7%9A%84%E8%A7%A3%E6%B3%95%2C%E6%8B%AC%E5%8F%B7%E8%A1%A8%E7%A4%BA%E6%98%AF%E4%B8%80%E8%B5%B7%E7%9A%84%21%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A1.%EF%BC%885-7x%EF%BC%89%2F8%3D%EF%BC%887-x%EF%BC%89%2F7+2.%EF%BC%88%EF%BC%881-y%EF%BC%89%2F3%EF%BC%89-y%3D3-%EF%BC%88%EF%BC%88y%2B2%EF%BC%89%2F2%EF%BC%893.%EF%BC%88%EF%BC%88x%2B4%EF%BC%89%2F0.2%EF%BC%89-%EF%BC%88%EF%BC%88x-3%EF%BC%89%2F0.5%EF%BC%89%3D-1.34.%EF%BC%88%EF%BC%885-0.1x%EF%BC%89%2F1.2%EF%BC%89-%EF%BC%88%EF%BC%88x-0.1%EF%BC%89%2F2.4%EF%BC%89%3D)
用一元一次方程去括号和去分母的解法,括号表示是一起的!解方程:1.(5-7x)/8=(7-x)/7 2.((1-y)/3)-y=3-((y+2)/2)3.((x+4)/0.2)-((x-3)/0.5)=-1.34.((5-0.1x)/1.2)-((x-0.1)/2.4)=
用一元一次方程去括号和去分母的解法,括号表示是一起的!
解方程:1.(5-7x)/8=(7-x)/7
2.((1-y)/3)-y=3-((y+2)/2)
3.((x+4)/0.2)-((x-3)/0.5)=-1.3
4.((5-0.1x)/1.2)-((x-0.1)/2.4)=1
用一元一次方程去括号和去分母的解法,括号表示是一起的!解方程:1.(5-7x)/8=(7-x)/7 2.((1-y)/3)-y=3-((y+2)/2)3.((x+4)/0.2)-((x-3)/0.5)=-1.34.((5-0.1x)/1.2)-((x-0.1)/2.4)=
1.(5-7x)/8=(7-x)/7
7(5-7x)=8(7-x)
35-49x=56-8x
49x-8x=35-56
41x=-21
x=-21/41
2.((1-y)/3)-y=3-((y+2)/2)
2(1-y)-6y=18-3(y+2)
2-2y-6y=18-3y-6
6y+2y-3y=2+6-18
5y=-10
y=-2
3.((x+4)/0.2)-((x-3)/0.5)=-1.3
5(x+4)-2(x-3)=-1.3
5x+20-2x+6=-1.3
3x=-1.3-26
3x=-27.3
x=-9.1
4.((5-0.1x)/1.2)-((x-0.1)/2.4)=1
2(5-0.1x)-(x-0.1)=2.4
10-0.2x-x+0.1=2.4
1.2x=10.1-2.4
1.2x=7.7
x=77/12