anonymous
  • anonymous
Solve xy-5=k for x.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
See I am not sure if I should add the 5 first to both sides or divide the y first to both sides
e.mccormick
  • e.mccormick
If you divide first, you end up with \(-\frac{5}{k}\) on one side and a fraction on the other too....
e.mccormick
  • e.mccormick
When doing "solve for..." type things, take the order of operations and reverse it. So PEMDAS becomes SADMEP... basically. Or ASMDEP.... The addition and Subtraction still happen at the same time, as do Multiplication and Division.

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anonymous
  • anonymous
So I should add first
e.mccormick
  • e.mccormick
Yah.
e.mccormick
  • e.mccormick
The great thing is, if you know your order of operations, then you know this rule too! It is just in the mirror and reversed. Every part of math has this. The un-do equation. So to undo addition you separate things. To undo multiplication you factor. Well, the undoing of order of operations is solve for this or that.

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