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iogann1982 [59]
3 years ago
13

Someone help please I need help!!

Mathematics
2 answers:
skad [1K]3 years ago
7 0

Answer:

hello

Step-by-step explanation:

adjacent angles are equal to 180 degrees,

(2x + 9) + (5x + 3) = 180 \\   8x + 12 = 180 \\ 8x = 180 - 12 \\ 8x = 168 \\ x  =  \frac{168}{8}  \\ x = 21  \\  \\

but, for some reason, does not match the answers…

Can the answers be wrong?

or I miscalculated…

i hope it helps have a nice day

scZoUnD [109]3 years ago
6 0

Answer:

24

Step-by-step explanation:

(2x + 9 )+ (5x + 3) = 180

x = 24

(I just guessed and checked. It was multiple choice so why not?)

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