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trapecia [35]
3 years ago
6

SOMEONE PLEAAAAAAAAAAAASE HELP

Mathematics
1 answer:
rodikova [14]3 years ago
6 0
4x+5 = 8x - 11
4x - 8x = -11 - 5
-4x = -16
   x = 4

4x+5 = 4(4) +5 = 21
8x - 11 = 8(4) - 11 = 21

<RST = 21  + 21 = 42

answer
<RST = 42 degrees

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