X+y21 & x-y=3 find value of x& y
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x+ y = 21 , x-y = 3
on adding
x+y = 21
x- y = 3
-----------
2x -0 = 24
2x = 24
x = 24/2
x = 12
to find y
x- y = 3
12 - y = 3
y= 3 -12
y = -9
Hope it helps you plz mark it as brainliest
on adding
x+y = 21
x- y = 3
-----------
2x -0 = 24
2x = 24
x = 24/2
x = 12
to find y
x- y = 3
12 - y = 3
y= 3 -12
y = -9
Hope it helps you plz mark it as brainliest
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