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x= 1 ⅞ -9
x = -7 ⅛
b) -8y =5 / :(-8)
y = -⁵/₈
c) x- ⅘ = 0,8
x = 0,8 + 0,8
x = 1,6
d) 6 ⅛ y = 1
⁴⁹/₈ y = 1 / * ⁸/₄₉
y = ⁸/₄₉
e) -2,2 + x =6,1
x = 6,1 + 2,2
x = 8,3
f) - ⅓ y = 10 / * (-3)
y = -30
g) 8a + 4 =36
8a = 36-4
8a = 32 / : 8
a = 4
h) ⁸/₉ k + ⅓ = 3
⁸/₉ k = 3 - ⅓
⁸/₉ k = 2 ⅔ / * ⁹/₈
k = ⁸/₃ * ⁹/₈
k = 3
i) 6b - 3 = - 9
6b = -9+3
6b = -6 / :6
b = -1
j) -¾ - ¼ l = 2,25
-0,25l = 2,25 + 0,75
-0,25 l = 3 / :(-0,25)
l = -12
k)-2,5c - 8 = 17
-2,5c = 17+8
-2,5c = 25 / :(-2,5)
c = -10
l) 0,4 m - 2 = -6
0,4m = -6+2
0,4 m = -4 / :0,4
m = -10