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PLEASE I NEED THE ANSWER TO THIS solve for x

PLEASE I NEED THE ANSWER TO THIS solve for x-example-1

1 Answer

1 vote
Answer is 30 °

Step by step

The three angles will equal to 180 degrees.

So we have
x + 15
4x - 15
X (our unknown)

x + 15 + 4x - 15 + x = 180

6x = 180

Divide both sides by 6 to solve for x

6/6 x = 180/ 6

x = 30

Check your work by substituting 30 for x

Our equation was

x + 15 + 4x - 15 + x = 180

30 + 15 + (4)(30) - 15 + 30 = 180

30 + 15 + 120 -15 + 30 = 180

180 = 180

Problem solved

User Zaadeh
by
8.0k points

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