If 3x+2y=16 and 2x+3y=19 then x+y=......
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If 3x+2y=16 and 2x+3y=19 then x+y=7
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Answer:
(3x+2y=16)×2=6x+4y=32.............................(1)
(2x+3y=19)×3=6x+9y=57..............................(2)
by substracting 1 from 2
5y=25
y=5
by putting y=5 in given equation
2x+3y=16
2×5+3y=16
3y=6
y=2
so, x+y=5+2=7
Step-by-step explanation:
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