X+16/7=12/11 18/5-x=15/2 x-36/5=27/4 x-8/5=2-1.25 9/7=1+x-3/
1个回答
X+16/7=12/11
X=12/11-16/7
X=84/77-176/77
X=-92/77
18/5-X=15/2
18/5-15/2=X
36/10-75/10=X
X=-39/10=-3.9
X-36/5=27/4
X=36/5+27/4
X=144/20+135/20
X=279/20=13.95
X-8/5=2-1.25
X-1.6=2-1.25
X=2-1.25+1.6
X=0.75+1.6
X=2.35
9/7=1+X-3/1
9/7=X+1-3/1
9/7=X+(-2)
9/7+2=X
X=9/7+14/7
X=23/7
2/1+4.7=5+X
2/1+4.7-5=X
0.5+4.7-5=X
5.2-5=X
X=0.2
8/3+5/4-8/1
=32/12+15/12-96/12
=47/12-96/12
=-49/12
12.7*6-12.7*5+10/7
=76.2-63.5+10/7
=12.7+10/7
=127/10+10/7
=889/70+100/70
=989/70
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