3 years ago

Help me as quick as possible 11x+4y=12 9x-4y=8 Solve it with elimination method

Mathematics

1 answer:

Firdavs [7]3 years ago

3 0

Answer:

x = 1, y = 1/4

Step-by-step explanation:

$11x + 4 y = 12 \ \ \ ---( 1)\\9x -4y = 8 \ \ \ - - - (2)\\\\(1) + ( 2 ) => 20x + 0 = 20\\\\$

$=> x = 1$

Substitute x = 1 in ( 1 ) :

$11 + 4y = 12\\4y = 12 - 11\\\\y =\frac{1}{4}$

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