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How do you solve #112 -5 =9z+7#?

Answer 1

Julia Adams

#z = 11 1/9#

You solve for #z# by keeping the equation balanced:

#112 - 5 = 9z + 7#

#112 - 5 - 7 = 9z + 7 - 7#

#9z = 100#

#z = 100/9 = 11 1/9#

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Answer 2

Julia Adams

To solve the equation 112 - 5 = 9z + 7:

Subtract 5 from 112 to get 107.
Subtract 7 from both sides of the equation to isolate the variable term.
Simplify both sides.
Divide both sides by 9 to solve for z.

The solution is z = 10.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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