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ArbitrLikvidat [17]

2 years ago

7

PLEASE HELP I WILL BRAINLIEST !

1 answer:

jasenka [17]2 years ago

8 0

Answer:

10 1/12

Step-by-step explanation:

In order to subtract fractions, you have to give them a common denominator.

18 1/2 can be rewritten as 18 6/12, as they are the same thing and 6/12 simplifies to 1/2. We make it 6/12 because we have to subtract it by 8 5/12, and the denominators are both 12.

So now we have 18 6/12 - 8 5/12, which gives us 10 1/12.

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2) $n = -3 \ \ \textsf{and} \ \ m = -4$

3) see below

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Step-by-step explanation:

<u>Question 1</u>

$15-0.5(4x-2)+4x=17$

$\implies 15-2x+1+4x=17$

$\implies 2x+16=17$

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<u>Question 2</u>

$\textsf{rearrange} \ n=m+1 :$

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$\textsf{substitute} \ \ n=-3 \ \ \textsf{into} \ \ m=n-1:$

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<u>Question 3</u>

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substitute found value for y into first equation

solve for x

<u>Question 4</u>

$3j=k$

$k=3j+1$

$\textsf{rearrange} \ 3j=k :$

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$\textsf{add equations}\ -k=-3j \ \ \textsf{and}\ \ k=3j+1:$

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