Answer two questions about Systems A and B: System A
{-10x-4y=0
{-2x+7y=8

System B
{-10x-4y=8
{-2x+7y=0

1) How can we get System B from A?

Choose 1

A) Replace only the left-hand side of one equation with the sum/difference of the left-hand side of both equations.

B) replace one equation with the sum/difference of both equations.

C) Swap only the right-hand side of both equations.

D) Swap the order of the equations

2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution?

A) yes
B) no

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun

good job you smart son of a gun you are smarter that einstein. 7

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)