Question

How do you solve the following system: #x+3y=-2, 6x + 7y = -9 #?

Answer 1

`x + 3y = -2`
`6x + 7y = -9`

multiply first equation by 6 -> `6x + 18y = -12`

subtract the two equations to end up with: `11y = -21`

Explanation:

After subtracting the two equations:

Solve for y then substitute it into one of either equations and find the value of x.