1.1. which statement explains why the two systems of equations below have the
same solution?
16x + 8y = -10
12x - 5y = 12
s 8x + 3y = 2
1 12x +16y = - 20

you have to find the same variables -3n - 5n so this would be -3n +(-5n) which equals -9n

130 degrees. i have no other way to explain

a

step-by-step explanation:

given the 2 equations

- x + y = - 2 → (1)

2x - 3y = 4 → (2)

multiplying (1) by 2 and adding to (2) will eliminate the x- term

- 2x + 2y = - 4 → (3)

add (2) and (3) term by term

(2x - 2x) + (- 3y + 2y) = (4 - 4), simplifying gives

- y = 0 ⇒ y = 0

substitute y = 0 in either of the 2 equations for corresponding value of x

substituting in (2) gives

2x = 4 ( divide both sides by 2 )

x = 2

solution is (2, 0 ) → a