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Wewaii [24]
3 years ago
5

-ELIMINATION-- 4x + 9y = 9 x - 3y = -6

Mathematics
1 answer:
Troyanec [42]3 years ago
6 0
The first on is this answer here

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3 years ago
Can anyone help me with this?
Vika [28.1K]

Answer:

x = 51

Step-by-step explanation:

The figure shown is a pentagon

The angles in a pentagon add up to equal 540

Which means that 77 + 107 + 156 + 149 + x = 540

                                    ^ ( note that we just created an equation that we can      

                                        use to solve for x )

We then solve for x using that equation

77 + 107 + 156 + 149 + x = 540  

step 1 combine like terms

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we're left with x = 51

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2 years ago
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