3x +2y +11=0; 7x - 4y = 9
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Answered by
14
Answer:
3x+2y=-11--------(1)
7x-4y=9----------(2)
multiply equation 1 by2
6x+4y= -22------(3)
add equation 2 and 3
7x-4y = 9
+ 6x+4y= -22
-----------------------
13x. = -13
x= -1
put in eqn 1.
3+2y= -11
2y = -8
y= -4
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Answered by
6
Solutions:
x = -1 & y = -4
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