Answer:
9x-3=7x+21
9x=7x+24
2x=24
x=12
Explanation:
(9x-3) and (7x+21) are corresponding angles that means that they are congruent. So they equal each other.
X = 12
Since each angle is equivalent to each other, you can write the equation:
(9x-3) = (7x+21)
Then Simplify.
Subtract both sides by 7x
2x-3=21
Add 3 To Both Sides
Divide by 2
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