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AleksAgata [21]
3 years ago
11

Simplify (8z - 10) ÷ (-2) 5(z - 1).

Mathematics
1 answer:
Nookie1986 [14]3 years ago
5 0
(8z - 10) ————————— + 5 • (z - 1) -2 <span>Step  2  :</span> 8z - 10 Simplify ——————— -2 <span>Step  3  :</span>Pulling out like terms :

<span> 3.1 </span>    Pull out like factors :

   8z - 10  =   2 • (4z - 5) 

<span>Equation at the end of step  3  :</span> (5 - 4z) + 5 • (z - 1) <span>Step  4  :</span>Final result : z

<span>
Processing ends successfully</span>

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Answer: Your answer is going to be D. (10, -1)


Step-by-step explanation:

Starting off the equation you want to get rid of either x or y ( I did x first)

Take x+3y=7 and multiply the entire equation by -2 -- -2(x+3y=7)

You get -2x-6y=-14 and then add the two equations together

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2x-4y=24  -- You get -10y = 10

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You can take the -1 and plug it back into either equation.. ( I did x+3y=7)

x+3(-1)=7 -- x-3=7 -- Add the 3 to get the 10 ( x = 10 )

So you have x = 10 & y = -1

(10,-1)




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