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nata0808 [166]
3 years ago
12

Solve for x: Need help with this problem.

Mathematics
2 answers:
Ludmilka [50]3 years ago
6 0

Answer:

x = 10

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 given angles and equate to 180, that is

5 + 3x + 70 + 75 = 180

3x + 150 = 180 ( subtract 150 from both sides )

3x = 30 ( divide both sides by 3 )

x = 10

rusak2 [61]3 years ago
4 0

The sum of all angles in a triangle is equal to 180.

75 + 70 + 5 + 3x = 180

150 + 3x = 180

3x = 180 - 150

3x = 30

x = 10

Third angle:

5 + 3(10)

35

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