ASAP GUYS PLEASE I NEED UR HELP THIS IS SO HARD Solve: 5 − 7 ( z + 1 ) = 7 ( − 9 − 3 z )

Mathematics

2 answers:

pantera1 [17]1 year ago

6 0

Answer:

$-\frac{61}{14}$

Step-by-step explanation:

Question: 5 - 7(z+1) = 7(-9-3z)

We multiply the number in front of the bracket first, since that is multiplication.

--> 5 -7z -7 = -63 - 21z

--> -7z -2 = -63 - 21z

Now, we move all the z and all the numbers to each side.

--> -7z +21z = -63 +2

--> 14z = -61

--> z = -61/14

This cannot be simplified further, so z is -61/14.

evablogger [386]1 year ago

4 0

5-7(z+1)=7(-9-3z)
5-7z-7=-63-21z
-2-7z=-63-21z
2+7z=63+21z
-61=14z
z=-61/14

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