Даю 44 бала,срочно!
-3,9+x=-8,6
(-1/7+x)-1/14= 2 1/3
21 / x=36/1,2
1,75:3,25=15:x
2,6*(28*x-12)+45=16,8*x+8,2
-3,9+x=-8,6
(-1/7+x)-1/14= 2 1/3
21 / x=36/1,2
1,75:3,25=15:x
2,6*(28*x-12)+45=16,8*x+8,2
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