solve the following pair of linear equation using cross multiplication method 2x-5y = 14 and x + 2y = -2
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Answer:
2x-5y=14 -(1)
x+2y=-2 -(2)
समीकरण 2 में दो से गुणा करने पर
2x-5y=14-(3)
2x+4y=-4 -(4)
समीकरण तीन तथा चार को जोड़ने पर
2x-5y=14
2x+4y=-4
9y=18
y=2
समीकरण 2 में y का मान रखने पर
x+2y=-2
x+2×2=-2
x+4=-2
x=-2+4
x=2
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