Math, asked by LEGENDRY12122005, 11 months ago

if 2x+3y=14, 2x-3y=2 the calue of xy is

Answers

Answered by Tanu1010

0

Answer:

2x+3y=14-----(1)

2x-3y=2-----(2)

Adding equation (1) and(2)

4x=16

x=16/4

x=4

Put, x=4 in equation (2)

2×4-3y=2

8-3y=2

-3y=2-8

-3y=-6

y=2

Therefore, xy=4×2=8

I hope it helps...

Answered by Anonymous

7

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$\texttt{Hey\:Brainly\:user}$

Given

$2x + 3y = 14$

$2x - 3y = 2$

________________________

$4x = 16$

$x = \frac{16}{4}$

$x = 4$

Subsitute X value in 2x+3y=14

$2(4) + 3y = 14$

$8 + 3y = 14$

$3y = 14 - 8$

$3y = 6$

$y = \frac{6}{3}$

$y = 2$

The value of x=4 and y=2

Verification:

$2x + 3y = 14$

$2(4) + 3(2)$

$8 + 6 = 14$

LHS=RHS

The value of xy=(4)(2)

xy=8

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