Choose a method you prefer to solve for a system of linear equations.
x+y=0
x-y= -16

Eliminating

Step-by-step explanation:

The given equations are ,

Here I would prefer to use Elimination Method. Since there is negative y and positive y in the equations . So we can eliminate y easily and then we can find x. Also , let's solve ,

On addition :-

→ 2x = -16

→ x = -16/2

→ x = -8

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it