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3 years ago

When solving 2n – 5 = 8n + 7 do you subtract 2 from 8 or 8 from 2

Mathematics

2 answers:

34kurt3 years ago

7 0

Either just make sure you carry the negative

NeX [460]3 years ago

7 0

Neither!

2n-5= 8n+7

+5 +5

2n= 8n+12

/2 /2 /2

n= 4n+6

2(4n+6)-5= 8(4n+6)+7

8n+7= 32n+55

-7 -7

8n= 32n+48

/8 /8 /8

n= 4n+6

This problem has NO SOLUTION!

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emmainna [20.7K]

Answer:

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(ii) 15 $\sqrt{6}$ - $\sqrt{216}$ = 15 $\sqrt{6}$ - $\sqrt{36}$ · $\sqrt{6}$ = 9 $\sqrt{6}$

(iii) 8 $\sqrt{45}$ - 8 $\sqrt{20}$ + $\sqrt{245}$ - 3 $\sqrt{125}$ = 8 $\sqrt{9}$ · $\sqrt{5}$ - 8 $\sqrt{4}$ · $\sqrt{5}$ + $\sqrt{49}$ · $\sqrt{5}$ - 3 $\sqrt{25}$ · $\sqrt{5}$ =

24 $\sqrt{5}$ - 16 $\sqrt{5}$ + 7 $\sqrt{5}$ - 15 $\sqrt{5}$ = 8 $\sqrt{5}$ - 8 $\sqrt{5}$ = 0

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3 years ago

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zhuklara [117]

Answer:

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Step-by-step explanation:

We need to find the number that is one thousand (1,000) less than one million (1,000,000).

less than clearly refers to subtraction
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<h3>How to determine the interval where the function is nonlinear and decreasing?</h3>

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Read more about function intervals at:

brainly.com/question/13136492

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