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ehidna [41]
3 years ago
14

Describe and correct the error in finding the solution.​

Mathematics
1 answer:
yaroslaw [1]3 years ago
6 0
The error is in step 2. if you are performing an operation on one side of the equation, it must be performed on the entire expression. you can’t only divide by 2 on one term, you must do it to everything in the equation. instead, you could add 6 to both sides first, giving you 2x = -4. Then you can divide by 2 on both sides. the answer is -2.
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After each hour 60% ( or 0.60) of the drug will be present.

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5 0
4 years ago
4 points
adell [148]
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8 0
3 years ago
How do I solve this problem 3y-6+7y-4y
VashaNatasha [74]
Let's simplify step-by-step.
3y-6+7y-4y
=3y+ -6+7y+ -4
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6 0
4 years ago
Two equations are given below: a – 3b = 22 a = b – 2 What is the solution to the set of equations in the form (a, b)? (–10, –8)
aliya0001 [1]
Hi Kristian

a - 3b = 22
a = b - 2

We need to solve a = b -2 for a
First, we need to substitute b - 2 for a in a - 3b = 22
a - 3b = 22
b - 2 - 3b = 22
-2b - 2 = 22
 -2b = 22 + 2
-2b = 24
b = 24/-2
b = -12

Now substitute -12 for b in a = b - 2
a = b -2
a= -12 - 2
a= -14

Thus, the solution is a = -14 and b = -12

The correct option is the last one (-14,-12)


If you have questions about my answer, please let me know.


Good luck! 

4 0
3 years ago
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Ksenya-84 [330]
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