3 years ago

Which solution for z makes the equation true?? 10+10+z=40=10 (pls explain why. Thanks)

Mathematics

2 answers:

Greeley [361]3 years ago

8 0

Answer:

z=30

Step-by-step explanation:

40-10=30

10+10+?=30

30-10-10=10

I'm sorry cuz I don't know how to explain it

stira [4]3 years ago

6 0

Answer:

z = 10

Step-by-step explanation:

10 + 10 + z = 40 - 10

10 + 10 + z = 30

10 + 10 + 10 = 30

since 40 - 10 = 30, then Z has to equal 10 because 10 + 10 + z needs to be 30

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