3 years ago

Hello,i need help with this question:

Mathematics

1 answer:

djyliett [7]3 years ago

8 0

Answer:

x = 23

Step-by-step explanation:

If the sum of angles is equal to 180 then we can write and equation to find the value of x

5x + 10 + 55 = 180 add like terms

5x + 65 = 180 subtract 65 from both sides

5x = 115 divide both sides by 5

x = 23

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