If 3x+5y=15 and 5x+3y=17 then what is the value of x +y?and option is 8,4,6,3
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3x+5y=15______1
5x+3y=17______2
Adding equation 1 and 2.
3x+5y=15 ____1
+ 5x+3y=17______2
8x+8y=32
dividing both side by 8.
8x+8y=32
8 8 8
x+y=4
Answered by
0
Answer:
x+y=4
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