3.4 Reducible to Linear Form

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Key Formulas

Solved Examples

Step 1

Let u=1/xu = 1/x and v=1/yv = 1/y.

Step 2

System becomes: 2u+3v=132u + 3v = 13 (1) and 5u4v=25u - 4v = -2 (2).

Step 3

Eliminate vv: Multiply (1) by 4 and (2) by 3.

Step 4

8u+12v=528u + 12v = 52 and 15u12v=615u - 12v = -6.

Step 5

Add equations: 23u=46    u=223u = 46 \implies u = 2.

Step 6

Find vv: 2(2)+3v=13    3v=9    v=32(2) + 3v = 13 \implies 3v = 9 \implies v = 3.

Step 7

Convert back: x=1/u=1/2x = 1/u = 1/2, y=1/v=1/3y = 1/v = 1/3.

Final Answer

x=1/2, y=1/3

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