SOLUTION: If <1 and <2 are supplementary angles and m<1= (3x+12) and m<2= (7x-30) find the value of x?

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Question 1055964: If <1 and <2 are supplementary angles and m<1= (3x+12) and m<2= (7x-30) find the value of x?
Answer by ikleyn(52829) About Me  (Show Source):
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If <1 and <2 are supplementary angles and m<1= (3x+12) and m<2= (7x-30) find the value of x?
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Then 

(3x+12) + (7x-30) = 180,

10x - 18 = 180,

10x = 180 + 18 = 198,

x = 198%2F10 degrees.

For more problems of this kind see the lesson
    - Solved problems on supplementary and complementary angles
in this site.