Mathematics, 25.09.2019 04:20 skyvargasov9cad

Apair of vertical angles has measures of (4x+9) degrees and 21 degrees. solve the equation for x. a. 3 b. 7.5 c. 8 d. 48

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Apair of vertical angles has measures of (4x+9) degrees and 21 degrees. solve the equation for x. a....