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Sagot :
Answer:
x = 9
Step-by-step explanation:
23 = 7/9(6x - 36) + 9
23 = 7(6x - 36) / 9 + 9
23 = 7(6x - 36) / 9 + 9
-9 -9
----------------------------------
14 = 7(6x - 36) / 9
*9 *9
----------------------------------
126 = 7(6x - 36)
/7 /7
-----------------------------------
18 = 6x - 36
+36 +36
-----------------------------------
54 = 6x
/6 /6
-----------------------------------
9 = x
Answer:
x=9
Step-by-step explanation:
23 = 7/9(6x - 36) + 9
9(23) = 9(7(6x - 36)/9 + 9)
207 = 7(6x - 36) + 81
207 = (42x - 252) + 81
207 = 42x - 252 + 81
207 = 42x - 171
378 = 42x
9 = x
x = 9
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