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Sindrei [870]
3 years ago
12

What is x in the eqaution -3x + 7 = 1

Mathematics
1 answer:
Lunna [17]3 years ago
8 0

Answer and Step-by-step explanation:

x=2

<u><em></em></u>

<u><em>→ Step 1: Subtract 7 from both sides :</em></u>

<u><em></em></u>-3x+7-7=1-7<u><em></em></u>

-3x=-6

<em><u>→ Step 2: Divide both sides by -3:</u></em>

<em><u /></em>\frac{-3x}{3}=\frac{-6}{3}<em><u /></em>

<em><u /></em>x=2<em><u /></em>

<em><u /></em>

<em><u>Answer :</u></em>

<em><u /></em>x=2<em><u /></em>

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atroni [7]

Answer: old machine 150, new machine 280

Step-by-step explanation:

given data:

Old machine = 25t

New machine = 35t

where t = hrs

we dont know the time for old machine so we assume it to be ( t ),

while that of the new machine is ( 14-t ) hours for new machine, and sum of 430 components.

therefore;

25t +490 - 35t = 430

-10t = -60

divide both sides by -10

t = 6 hours for the first machine.

6hrs * 25 components /hr

= 150 component parts For old machine.

for new machine

= 14 - t ........... eq1.

where ( t = 6 ), substitute t into the equation

= 14 - 6

= 8 hours for the second machine

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= 280 components parts

4 0
3 years ago
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Answer:

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6 0
2 years ago
John works two jobs. A weekly pay stub from one job shows an earning of $235.23 and his second pay stub shows a monthly earning
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D) $23,400

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If you multiply 12 subtract 2.40 how do you get 9.60 because I got 2.80
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