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Skippy
Mathematics
27 April, 15:37
Solve what is the answer
-2z+3+7z=-12
+3
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Mireya Banks
27 April, 15:39
0
Simple, all you want to find is z. Thus, you will isolate the variable z and move everything else to the other side. So when you do that the equation will look like, 5z=-15. Then just divide by 5 and your answer is z=-3.
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Anderson
27 April, 16:00
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-2z+3+7z=-12
⇒ (-2z + 7z) + 3 = - 12 (combine like terms)
⇒ 5z + 3 = - 12
⇒ 5z = - 12 - 3
⇒ 5z = - 15
⇒ z = - 15/5
⇒ z = - 3
Final answer: z = - 3.
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