Question

solve by elemination method 3x+4y=10 and 2x-2y=2

Answer 1

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Answer 2

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⬜ GIVEN, 3x + 4y = 10
=> 3x = 10 - 4y
=> x = 10-4y/3

THEREFORE,
2x - 2y = 2
=>2(10-4y/3) -2y = 2
=>(20 - 8y)/3 - 2y = 2
=>(20-8y-6y)/3 = 2
=>-14y= -14
=> y = 1

THEREFORE ,
3x +4y = 10
=>3x = 6
=>x = 2.