Question

What is the solution to the system of equations {−3x+5y=12 7x−5y=−28?

Answer 1

Answer:

$\boxed{x = -4~~and~~y = 0}$

.

Step-by-step explanation:

Use elimination

-3x + 5y = 12

7x - 5y = -28  +

$4x = -16$

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

$x = -4$

.

Subsitute the value of x to one of equations

$-3x + 5y = 12$

$-3(-4) + 5y = 12$

$12 + 5y = 12$

$5y = 12 - 12$

$5y = 0$

$y = \frac{0}{5}$

$y = 0$

.

Happy to help :)

Answer 2

Answer:

x=-4 and y=0

Step-by-step explanation: