A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
-6x - 2y = -28
6x – 7y = 37
Add to eliminate x.
Subtract to eliminate y.
Add to eliminate y.
Subtract to eliminate x.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

mnkjn

step-by-step explanation:

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation: