A section of a rectangle is shaded. The area of the shaded section is 63 square units. What
is the value of x?
7
X
O 9 units
O 11 units
O 18 units
o 21 units
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an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )

a

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