Solve simultaneous equations
x+y=3
x-y=4
Answers
Answered by
2
x+y=3
x-y=4
_
2x=7
x=7/2
y=3-x
y=3-7/2
y=6/2-7/2
y=-1/2
x-y=4
_
2x=7
x=7/2
y=3-x
y=3-7/2
y=6/2-7/2
y=-1/2
Answered by
1
BY ELIMINATION METHOD :
X+ Y = 3
X- Y = 4
_______
2X = 7
X = 7/2
_______
Now substitute x = 7/2 in X + Y = 3
X + Y = 3
7/2+ Y = 3
Y = 3× 2/7
Y = 6/7
_________
X+ Y = 3
X- Y = 4
_______
2X = 7
X = 7/2
_______
Now substitute x = 7/2 in X + Y = 3
X + Y = 3
7/2+ Y = 3
Y = 3× 2/7
Y = 6/7
_________
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