102% of 250 = 255 Hope this helps ( :
1) Solve one of the equations for either variable.
2) Substitute the expression from Step 1 into the other equation.
3) Solve the resulting equation.
4) Substitute the solution in Step 3 into one of the original equations to find the other variable.
5) Write the solution as an ordered pair.
-14+71/2= -6 1/2 degrees Celsius is the original temperature.
Given:
The function is:
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To find:
The value of
.
Solution:
We have,
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Putting
, we get



On combining like terms, we get
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
Therefore, the required function is
.