Gaby2426 Gaby2426

22-04-2021
Mathematics

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22-04-2021

Answer:

x = 20

Step-by-step explanation:

These 2 angles are supplementary so they add up to 180:

3x - 10 + 5x + 30 = 180

8x + 20 = 180

8x = 160

x = 20

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