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Novay_Z [31]
3 years ago
15

8. Solve the following equation z- 4 = -8

Mathematics
2 answers:
Alexxx [7]3 years ago
7 0

You are solving for the variable. Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS:

8) z- 4 = -8

Isolate the z. Add 4 to each side

z - 4 (+4) = -8 (+4)

z = -8 + 4

z = -4

C. z = -4 is your answer

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

9) -3 = x/5

Note the equal sign. What you do to one side, you do to the other. Isolate the x. Multiply 5 to both sides

-3(5) = x/5(5)

x = -3(5)

x = - 15

B. x = - 15 is your answer

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

hope this helps

Gemiola [76]3 years ago
5 0
8. C



9. B



10. idk what the equation is
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