Question

Solve the following simultaneous equation: 2x+3y=7 7x-y=13 I want explanations

Answer 1

Hey mate here is your answer ⬇️

Refer to the attachment.

Answer 2

1) x + y = 14 => 1

x - y = 4 => 2

x + y = 14

$\boxed{\text{x = 14 - y = 1}}$

apply 1 in 2

x - y = 4

14 - y - y = 4

14 - 2y = 4

-2y = 4 - 14

-2y = -10

$y \ = \frac{10}{ - 2} = 5$

$\boxed{\text{ y = 5}}$

apply y in 1

x + y = 14

x + 5 = 14

x = 14 - 5

$\boxed{\text{ x = 9}}$