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रैखिक समीकरण युग्म को प्रतिस्थापन वि...

रैखिक समीकरण युग्म को प्रतिस्थापन विधि से हल कीजिए : `0.2x + 0.3y = 1.3" "0.4x + 0.5y = 2.3`

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2x + 3y = 0 , 3 x + 4y = 5 .

{:(0.4x + 0.3y = 1.7),(0.7x - 0.2y = 0.8):}

{:(0.4x + 0.3y = 1.7),(0.7x - 0.2y = 0.8):}

x- y + 3 = 0, 2x + 3y - 4 = 0 .

Solve the following equations : 0.2x+0.3y=1.3 0.4x+0.5y=2.3

Solve for x and y : 0.4 x - 1.5 y = 6.5 , 0.3 x + 0.2 y = 0.9 .

2x+3y=0 3x+4y=5

x^(2) - 1 = 0, y^(2) + 4y + 3 = 0

{:(3y + 2x = 0),(4y + 3x = 5):}