Answer:
x = 27
Explanation:
vertical angles are congruent , then
5(x - 4) = 4x + 7 ← distribute parenthesis on left side
5x - 20 = 4x + 7 ( subtract 4x from both sides )
x - 20 = 7 ( add 20 to both sides )
Vertical angles are congruent.
5(x - 4 ) = 4x +7
5x - 20 = 4x + 7 {Distributive property}
Add 20 to both sides
5x = 4x + 7 + 20
5x = 4x + 27
Subtract 4x from both sides
5x - 4x = 27
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