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prohojiy [21]
3 years ago
8

Can someone answer this please

Mathematics
1 answer:
nlexa [21]3 years ago
6 0

Answer:

x = 31°

Step-by-step explanation:

All the angles given, a, 2x, and 3x, form a straight lines, so therefore, they add up to 180°. We can write an equation from the info:

a + 2x + 3x = 180°

We know a is 25°, so we can substitute that in:

25° + 2x + 3x = 180°

Combine like terms...

25° + 5x = 180°

And solve.

5x = 155°

x = 31°

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You can re-check your answer (very important):
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