(1)3X+5/2=2X-1/3(2)X-3/-5=3X+4/15(3)3Y-1/4-1=5Y-7/6(4)5y+4/3+y-1/4=2-5y-5/12
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/29 05:05:56
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(1)3X+5/2=2X-1/3(2)X-3/-5=3X+4/15(3)3Y-1/4-1=5Y-7/6(4)5y+4/3+y-1/4=2-5y-5/12
(1)3X+5/2=2X-1/3
(2)X-3/-5=3X+4/15
(3)3Y-1/4-1=5Y-7/6
(4)5y+4/3+y-1/4=2-5y-5/12
(1)3X+5/2=2X-1/3(2)X-3/-5=3X+4/15(3)3Y-1/4-1=5Y-7/6(4)5y+4/3+y-1/4=2-5y-5/12
建议以后还是把题目发上来,否则向你这样提问是不可能得到回答的.
x=-17/5x=-75/11 y=-1和y=3/2
1).9x+15=4x-2 x=-17/5
2).15-4x=-15x-60 11x=-75 x=-75/11
3).(3y-5)/4=(5y-7)/6 20y-28=18y-30 y=-1
4).(20y+16+3y-3)/12=(24-5y+5)/12
28y=42
y=3/2
什么意思呀?写一下要求。
(1)x=17/5
(2)x=75/11
(3)y=1
(4)y=3/2
3xX6+2/5X6=2xX6-1/3X6
18xX3(5X6)=12X-2
18xX15X18=12X-2
18x-12x=15+18-2
6x=33-2
x=31*6
x=6/31
x=-17/5
x=-75/11
y=-1
y=3/2
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