Question

forthe simultaneous equation in variables x and dx = 49 ,dy= -63 ,d= 7 then find the values of x and y

Answer 1

BY CRAMERS RULE METHOD

X=dx/d
=49/7
=7

Y=dy/d
= -63/7
= -9

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Answer 2

dx=49
d=7
x=49/7
x=7
dy=-63
d=7
y=-63/7
y=-9