、+++++++++++++++++++++++++++++99999999分28*(x+5)=560 7*(120-x)=3x 3*(22+x)=5x 3(y+4)=24 2.5x+48x2.5=260 9x=6*(10-x)这些咋解
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![、+++++++++++++++++++++++++++++99999999分28*(x+5)=560 7*(120-x)=3x 3*(22+x)=5x 3(y+4)=24 2.5x+48x2.5=260 9x=6*(10-x)这些咋解](/uploads/image/z/2677078-46-8.jpg?t=%E3%80%81%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B%2B99999999%E5%88%8628%2A%EF%BC%88x%2B5%29%3D560+7%2A%EF%BC%88120-x%EF%BC%89%3D3x+3%2A%2822%2Bx%29%3D5x+3%28y%2B4%29%3D24+2.5x%2B48x2.5%3D260+9x%3D6%2A%2810-x%29%E8%BF%99%E4%BA%9B%E5%92%8B%E8%A7%A3)
、+++++++++++++++++++++++++++++99999999分28*(x+5)=560 7*(120-x)=3x 3*(22+x)=5x 3(y+4)=24 2.5x+48x2.5=260 9x=6*(10-x)这些咋解
、+++++++++++++++++++++++++++++99999999分
28*(x+5)=560 7*(120-x)=3x 3*(22+x)=5x 3(y+4)=24 2.5x+48x2.5=260 9x=6*(10-x)这些咋解
、+++++++++++++++++++++++++++++99999999分28*(x+5)=560 7*(120-x)=3x 3*(22+x)=5x 3(y+4)=24 2.5x+48x2.5=260 9x=6*(10-x)这些咋解
1.28x+140=560,28x=420,x=15
2.840-7x=3x,10x=840,x=84
3.66+3x=5x,2x=66,x=33
4.3y+12=24,3y=12,y=4
5.2.5x+120=260,2.5x=140,x=56
6.9x=60-6x,3x=60,x=20