Lines AB and CD are perpendicular to each other. If 1 measures (3x + 3)°, and 2 measures 42°, what is the value of x? A. x = 132 B. x = 12 C. x = 15 D. x = 58
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(3x+3)+42 =180
(3x+3)=138
3x=135
x=45
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