решите пожалуйста ^^
8 - 6 х = 9 - 3 х
х + 2,5= 9 х+8,5
6 (х - 4)=5 х - 10
20 - х =5 (2 - х)
8 - 6 х = 9 - 3 х
х + 2,5= 9 х+8,5
6 (х - 4)=5 х - 10
20 - х =5 (2 - х)
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Answers & Comments
-1=3x
x=-1/3
2) -8,5+2,5=8x
-6=8x
x=-6/8=-3/4=-0,75
3)6x-24=5x-10
x=14
4) 20-x=10-5x
4x=-10
x=-10/4=-2,5