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BARSIC [14]
3 years ago
6

A : 4 B : 13 C : 18 D : 19 E : 26 Help !

Mathematics
1 answer:
Gnoma [55]3 years ago
6 0

x + 9 = 4x - 3 \\ x + 9 + 3 = 4x \\ 9 + 3 = 4x - x \\ 12 = 4x - x \\ 12 = 3x \\ x =  \frac{12}{3}  \\ x = 4
to find the length of LK plug x into 4x-3 and x+9 then add them together

(4x - 3) \\ (4 \times 4 - 3) \\ (16 - 3) \\  = 13
(x + 9) \\ (4 + 9) \\  = 13
13 + 13 = 26


E is the answer
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