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ElenaW [278]
3 years ago
11

Justify each step used to simplify the expression (3x - 2x) + 2y + 2

Mathematics
2 answers:
dimaraw [331]3 years ago
6 0
The answer to this question is x+2y+2

I hope this helps!!!!!!

professor190 [17]3 years ago
5 0
1x +2y+2
there would be no other way to simplify it further unless they told you what x or y is
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Answer:

<h3>∠XYZ = 102</h3><h3></h3>

Step-by-step explanation:

<u>1st step is to solve x from ΔWXY</u>

∠W + ∠X + ∠Y = 180

where ∠W = 5x + 2

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           ∠Y = 180 - (15x - 18)

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now plugin values into the equation:

5x + 2   +   7x + 4  +  198 - 15x  = 180

combine similar terms:

5x + 7x - 15x = 180 - 2 - 4 - 198

simplify:

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x = -24 / -3

x = 8

<u>2nd step is to substitute x = 8 into ∠XYZ</u>

∠XYZ = 15x - 18

∠XYZ = 15(8)  - 18

∠XYZ = 102

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