Question

3x = 2y − 16
4x − y = -13

Answer 1

x = -2 and y = 5

Answer 2

3x = 2y − 16 => 3x - 2y = -16 -(1)
4x − y = -13 => 4x − y = -13 -(2)

(2)x2 - (1)
2(4x − y) - (3x - 2y) = 2(-13) - (-16 )

Solve x.
Then put the value of x into (1) and solve y.

Answer 3

Find value of y from second equation:

\[y = 4x + 13\]

Now put this in first equation:

\[3x - 2(4x + 13) = -16 \implies 3x - 8x = -16 + 26 \implies -5x = 10\]

Divide both the sides by -5 and get x and them by plugging value of x in any of the equation find y..

Answer 4

3x-2y=-16.............1
4x-y=-13..............2