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3 years ago

How do i solve 2z+9.75-7z= -5.15

Mathematics

1 answer:

Vinil7 [7]3 years ago

4 0

2z + 9.75 -7z = -5.15

2z - 7z + 9.75 = -5.15

-5z + 9.75 = -5.15

-5z + 9.75 - 9.75 = -5.15 - 9.75

-5z = -14.9

-5z/-5 = -14.9/-5

z = 2.98

I hope this helps

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3 years ago

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============================================

Work Shown:

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---------------

Explanation:

The idea is to first get all the y terms to one side. I did this by subtracting 2y from both sides in the third step.

Then factor out y and divide both sides by (8x-2)

Afterward there's the optional steps of simplifying (as shown in the final two steps).

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