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lys-0071 [83]
3 years ago
13

Please help me ☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️☺️

Mathematics
2 answers:
V125BC [204]3 years ago
6 0
3x+6x=90
9x=90
x=10
...................
Olegator [25]3 years ago
5 0
Two complementary angles make a total of 90, so 3x+6x=90, x=10
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