The solution to the following equations is given below;
y - 6 = 12
y = 12 + 6
y = 18
-5 + k = 1
k = 1 + 5
k = 6
-2g = -14
g = -14/-2
g = 7
y - 4 = 12
y = 12 + 4
y = 16
12 + u = -12
u = -12 - 12
u = -24
f - 7 = 10
f = 10 + 7
f = 17
8t = 42
t = 42/8
t = 5.25
-9 + z = 18
z = 18 + 9
z = 27
7 + w = 14
w = 14 - 7
w = 7
13 - 5 = 12
8 ≠ 12
D - 2 = -10
D = -10 + 2
D = -8
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