Math, asked by ambicaparasa9271, 1 year ago

If 7(x - y) = 343 and 7(x + y) = 16807, what is the value of x?
a.1
b.3
c.4
d.2

Answers

Answered by deb5
7
your answer is 2450 alonging to the question of that value of x
Answered by AniLeo
2
7(x-y)=343
=>x-y=49----(i)
7(x+y)=16807
=>x+y=2401----(ii)
∴ By Simultaneous Equation of (i) & (ii),
x=2450
y=1176

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