2x+y=10 and x-4y=13alimationethod answer
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2x+y=10______1
x+4y=13______2
1 और 2 से
2x+y=10
2x-8y=26
- + -
_________
9y=-36
y=-4
y के मान समीकरण 1 में रखने पर
2x+(-4)=10
2x-4=10
2x=10+4
2x=14
x=7
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