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VMariaS [17]
3 years ago
13

I have to figure out what x equals ​

Mathematics
1 answer:
nexus9112 [7]3 years ago
7 0

Answer:

x = 108

Step-by-step explanation:

added together, these angles equal 360.

x - 1 + x - 71 + 216 = 360

combine like terms

2x - 72 + 216 = 360

2x + 144 = 360

subtract 144 from both sides of the equation

2x + 144 -144 = 360 - 144

2x = 360 - 144

2x = 216

x = 216/2

x = 108

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