Write an equation to solve each problem. See Example.
EXAMPLE 4
Two angles are vertical angles. The measure of the first angle is 5 degrees more than a number, and the measure of the second angle is 25° less than six times the number. What is the measure of the first angle?
The degree measure of one angle is half of a number, and an angle vertical to it measures 15° less than the number. What is the measure of the first angle?
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