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25 votes
25 votes
Find the value for x
(x+63)
(4x)

Find the value for x (x+63) (4x)-example-1
User Uzhas
by
2.5k points

1 Answer

10 votes
10 votes

Answer:

x = 21

Explanation:

You are given expressions (x+63)° and (4x)° for alternate interior angles at a transversal crossing parallel lines. You want to know the value of x.

Alternate interior angles

Where a transversal crosses parallel lines, alternate interior angles are congruent. That means ...

(4x)° = (x +63)°

3x = 63 . . . . . . . . divide by °, subtract x

x = 21 . . . . . . . . . divide by the coefficient of x

User Arbulgazar
by
3.7k points