calc
posted by bob .
Find x.
Supplementary angles with measures 10x+7 and 7x+3.
Complementary angles with measures 3x5 and 6x40.

10x+7 + 7x+3 = 180
3x5 + 6x40 = 90
I think that is how you set it up. 
10x+7+7x+3
posted by bob .
Find x.
Supplementary angles with measures 10x+7 and 7x+3.
Complementary angles with measures 3x5 and 6x40.
10x+7 + 7x+3 = 180
3x5 + 6x40 = 90
I think that is how you set it up.
10x+7+7x+3