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y=x-2 and x+y=4 are simultaneous equation solve
by subsititution method
y=x-2 and x+y=4 simultaneous equation by subsititution method
303156
792121
follow the equation by using formula method 9X square minus 3 x minus 2 is equal to zero
subtract 7/17/and 9/17
70 to 80 percentage increase
Circle E, AB // CD and BC is a diameter
make X the subject of the formula y/(y+2)=x/y
