Find the value of the variable. (8x + 7)° (9x - 4)° x = □
5. Find the value of the variable.
(8x + 7)°
(9x - 4)°
x = □
(8x + 7)°
(9x - 4)°
x = □
Solution:
Since the angles are vertical angles, they are equal. Therefore, we can set the expressions equal to each other:
Subtract 8x from both sides:
Add 4 to both sides:
Therefore, x = 11.
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