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Adyson Garrison
History
13 May, 11:57
Whats the value of z
2 (5-2z) = 20-2 (z-1)
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Grant Walker
13 May, 12:27
0
Answer: z=-6
.
.
2 (5-2z) = 20-2 (z-1)
10-4z=20-2z+2
... - 4 ... - 4
10=2z+22
-22 ... - 22
2z=-12
:2 : 2
z=-6
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