5x+35=12x-42 8x-4=-3x-21 4-4x=3x-3 12x+7=14-4x 288x+144=15x
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5x+35=12x-42 8x-4=-3x-21 4-4x=3x-3 12x+7=14-4x 288x+144=15x (x+1/0.3)-(2x-1/0.7)=0
5x+35=12x-42
12x-5x=35+42
7x=77
x=11
8x-4=-3x-21
8x+3x=4-21
11x=-17
x=-17/11
4-4x=3x-3
3x+4x=4+3
7x=7
x=1
12x+7=14-4x
12x+4x=14-7
16x=7
x=7/16
288x+144=15x
288x-15x=-144
273x=-144
x=-48/91
(x+1/0.3)-(2x-1/0.7)=0
x+10/3-2x+10/7=0
-x+100/21=0
x=100/21
不懂的欢迎追问...
12x-5x=35+42
7x=77
x=11
8x-4=-3x-21
8x+3x=4-21
11x=-17
x=-17/11
4-4x=3x-3
3x+4x=4+3
7x=7
x=1
12x+7=14-4x
12x+4x=14-7
16x=7
x=7/16
288x+144=15x
288x-15x=-144
273x=-144
x=-48/91
(x+1/0.3)-(2x-1/0.7)=0
x+10/3-2x+10/7=0
-x+100/21=0
x=100/21
不懂的欢迎追问...
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