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The solution to the above mathematical problem is very simple.
6x-3y=30
4x=2-y>>>x=(2-y)/4
Put value of x in first equation
6(2-y)/4-3y=30
12/4-6y/4-3y=30
3-3y/2-3y=30
-(3y-6y)/2=27
-9y/2=27
y=-27x2/9
y=-6
Thus the value of x will be
x=(2+6)/4=2
Hence x+y= 2+(-6)=-4
6x-3y=30
4x=2-y>>>x=(2-y)/4
Put value of x in first equation
6(2-y)/4-3y=30
12/4-6y/4-3y=30
3-3y/2-3y=30
-(3y-6y)/2=27
-9y/2=27
y=-27x2/9
y=-6
Thus the value of x will be
x=(2+6)/4=2
Hence x+y= 2+(-6)=-4
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