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Deffense [45]
3 years ago
9

What is the value of x?

Mathematics
2 answers:
Mkey [24]3 years ago
7 0

Answer:

x = 7 degrees

Step-by-step explanation:

See attached image.

NemiM [27]3 years ago
5 0

Answer:

Step-by-step explanation:

Sum of all angles of triangle = 180°

15x + 3 + 3x - 1 + 52 = 180

15x + 3x + 3 - 1 + 52= 180

Combine like terms.

   18x + 54 = 180

To find the vlaue of x, we have to islolate x

<u>Step1:</u> Subtract 54 from both sides

          18x = 180 - 54

          18x = 126

<u>Step2:</u> Divide both sides by 18

             x = 126/18

x = 7

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