roxannehinata roxannehinata

19-11-2020
Mathematics

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Explain why 2(z – 1) = 4(z + 5) has one solution.

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yoyo005 yoyo005

19-11-2020

2(z - 1) = 4(z + 5)

2z - 2 = 4z + 20

minus 2z from the whole equation

-2 = 2z + 20

add 2 to the other side

0 = 2z + 22

2z = -22

z = -11

there is only one solution cuz its a linear equation ( not sure tho )

Answer Link

zainabfahad304 zainabfahad304

19-11-2020

Answer:

because if its done any other way it will be incorrect and z = 2

Step-by-step explanation:

Answer Link

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