7*3+4x=9x-3x-510x+5=11x+7-2x8-2x=7x-102(x-1)+1=75(x+2)=2(5x-1)-33_数学解答

7*3+4x=9x-3x-5
10x+5=11x+7-2x
8-2x=7x-10
2(x-1)+1=7
5(x+2)=2(5x-1)-3
3(2x+1)=2(1+x)+3(x+3)
5x+4=25-(x-3)
2(x+2)+7=3(4x-1)-9(x-1)
要过程

人气：351 ℃　时间：2020-04-30 21:53:13

解答

21+5=9x-3x-4x x=13
5-7=11x-2x-10x x=2
8+10=7x+2x x=2
2x-2+1=7 2x=7+2-1 x=4
5x+10=10x-2-3 10+2+3=10x-5x x=3
6x+3=2+2x+3x+9 6x-2x-3x=2+9-3 x=8
5x+x=25+3-4 x=4
2x+4+7=12x-3-9x+9 4+7+3-9=12x-2x-9x x=5
纯手打