Question

Solve using the elimination method show your work
-x+4y=0.5
-3x-6y=10.5

Answer 1

Okay i'd say it would be easiest if we divided every term in the second equation by -3
so now we have
x + 2y = -3.5
Lets set them up to eliminate

-x + 4y = 0.5
x + 2y = -3.5
x is eliminated
6y = -3
divide by 6
y = -3/6
or y = -1/2
now lets plug it in to solve for x
-x + 4 (-1/2) = 0.5
-x -2 = 0.5
add 2
-x = 1.5
divide by -1
x = -1.5
so our solution is (-1.5, -0.5)

Answer 2

Thank you so much!!!

Answer 3

no problem.