Մաթեմատիկա
-x = 8 1/2 — 6
-x = 2 1/2
x=-2 1/2
-x = 2 5/22 — 9/11
-x = 2 5/22 — 18/22
-x = 1 27/22 — 18/22
-x = 1 9/22
x=-1 9/22
2x — 2/2 = 4
2x = 2/2 + 4
2x = 5
x=5/2
x = — 10 + 6 1/4
x=-3 3/4
-x = 2 2/3 — 1
-x = 1 2/3
x=-1 2/3
2x+6 = 6-x
2x + x = 6-6
3x=0
x=0:3=0
x=0
21 — 7x + 4x + 8 = 8
-7x — 4x =-21 — 8 + 8
3x = -29 + 8
3x = -21
x = -21:3 = -21/3
x=-21/3
12-3x = 2x + 1
-3-2x =-12 + 1
-5x = -11
5x = 11
x =11/5
x=2 1/5
5x — 45 + 12 — 6x = 1
5x — 6x = 45-12+1
-x = 34
x=-34
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-7 3/5 — 3 2/5 = -11
-11 — 4 2/7 =-15 2/7
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