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navik [9.2K]
3 years ago
9

What is the answer to X-9=8(2x+3)-18

Mathematics
2 answers:
Mariulka [41]3 years ago
7 0
X-9=8(2x+3)-18
x-9=16x+24-18
-9=15x+6
-15=15x
x=-1
OlgaM077 [116]3 years ago
6 0
X - 9 = 16x + 24 - 18
x - 9 = 16x + 6
-15 = 15x
-1 = x
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Answer:

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Step-by-step explanation:

Since we know the angle measure of angle 4, we already know that angle 2 will have the same measure according to do the vertical angle theorem. Now to find angles 1 and 3, we can make an equation and solve for x (supplementary angles).

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