SOLUTION: Solve using inverse operations -2.1k + 5.6 = 20.2

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Question 292739: Solve using inverse operations -2.1k + 5.6 = 20.2
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

-2.1k%2B5.6=20.2 Start with the given equation.


10%28-2.1k%2B5.6%29=10%2820.2%29 Multiply both sides by 10 to clear out the decimals.


-21k%2B56=202 Distribute and multiply.


-21k=202-56 Subtract 56 from both sides.


-21k=146 Combine like terms on the right side.


k=%28146%29%2F%28-21%29 Divide both sides by -21 to isolate k.


k=-146%2F21 Reduce.


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Answer:

So the solution is k=-146%2F21 which approximates to k=-6.952.