Question

Solve 2x – 5y = 1 by the elimination method.
3x – 4y = -2

x = .66
y = 1

Answer 1

Do you want me to verify your answers?

Answer 2

because unfortunate you are wrong.

Answer 3

I was afraid of that...

Answer 4

@Sepeario

Answer 5

i shall show you by your chosen method of elimination.

Answer 6

say we have equation 1 (the first) and the second equation equation 2. let's multiply eq 1 by 3 so we have 6x-15y=3 and eq 2 by 2 so we have 6x-8y=-2

Answer 7

What do you get if you subtract the two newly formed equations?

Answer 8

-23y = 5

Answer 9

oops the second new equation is 6x-8y=-4

Answer 10

just check your working, you need to remember that subtracting a negative equals an addition instead.

Answer 11

-7y = 7

Answer 12

y = -1

Answer 13

good

Answer 14

now substitute that value to find x.

Answer 15

x = -2

Answer 16

good job!