Problem

Solve the equation for y. See Example.Example Solving for a Specified VariableSolve each e...

Solve the equation for y. See Example.

Example Solving for a Specified Variable
Solve each equation for y.
(a)
We could have added y and subtracted 7 from each side of the equation to isolate y on the right, giving 2x − 7 = y, a different form of the same result. There is often more than one way to solve for a specified variable.
(b)
Although we could have given our answer as , we simplified further in preparation for our work in Chapter 3.

4x − y = 1

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Solutions For Problems in Chapter 2.5

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