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____ [38]
3 years ago
11

2x+8=7x-12 || -m/4+5=2 || 3x-8=-17 ||

Mathematics
1 answer:
aliina [53]3 years ago
3 0
<span>2x+8=7x-12    we put the x in a side  and the number in the other side 
5x = 20 
x= 20/5 = 4

</span><span> -m/4+5=2
</span> common denominator
-m /4  + 20/4 = 2/4   
-m +20 = 2

m = 20-2 =18

<span>3x-8=-17

3x = -17 +8 

3x = -9 

x= -9/3 = -3 </span>
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That is necessary because they are consecutive integers. Since the sum is 33, we need to create an equation.

x+x+1+x+2=33.

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3x+3=33.

Opposite operations:

3x=-3+33.

To get the 3 close to the 33, we needed to make it negative, which is the opposite operation of the positive 3.

So,

3x=30.

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To go with the guide that we already created,

1st integer: x=10

2nd integer: x+1=11

3rd integer:x+2=12.

Therefore, the three consecutive integers are 10, 11, and 12.

To check that, add them up. They all equal 33 and they are consecutive, which means this is the right answer!

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3 years ago
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The rest of the question is the attached figure

=========================================

solution:


∠H = ∠J = 27°

∠G = ∠L = 117°

∠F = 180 - (∠H + ∠G) = 180 - (27+117) = 36°


∠K = 180 - (∠J + ∠L ) = 180 - (27+117) = 36°


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∴ ΔHGF is similar to ΔJLK


So, the correct statement ⇒ HG and LJ are proportional.




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