Anna V.

asked • 02/22/22

Please help! Thanks!

If 8-3z=16+5z, then what is the value of 4z?


a. -16

b. -4

c. 1

d. 12

1 Expert Answer

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Marion J. answered • 02/22/22

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8 - 3z = 16 + 5z move the z terms to one side and the constant terms to the other side

-3z - 5z = 16 - 8

-8z = 8 divide both sides by -8

z = -1 multiply both sides by 4

4z = -4

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Mark M.

Move is not an algebraic operation. What you did was subtract 5z from both sides and subtract 8 from both sides.
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02/23/22

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