Solve the following equations graphical x+3y=6 and 2x_3y=12 and hence find the value of a if 4x+3y=a
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Multiply x + 3y = 6 by 2 and subtracted from 2x - 3y = 12 . Putting value of y in the x + 3y = 6 . Therefore the value of a is 24 .
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