Here are janet's steps for solving the system below by eliminating x.
2x + 3y = -1 5x + 8y = 0
step one: multiply the first equation by 5. 10x + 15y = -5
step two: multiply the second equation by -2. -10x - 16y = 0
step three: add the two equations. y = -5 step
four: substitute y back into the first equation. 2x + 3(-5) = -1
step five: solve for x. 2x - 15 = -1 2x = 14 x = 7 is she correct? justify your answer. if incorrect, describe the error.

why can't you?

step-by-step explanation:

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer