Question

6x+9y=80
2x+20y=75
I need to solve for x & y using the elimination method.

Answer 1

please show all steps

Answer 2

6x+9y=80
(2x+20y=75)x3

6x+9y=80
6x+60y=225

subtract
6x+9y=80
-6x-60y=-225

=

-51y=-145
y=(-145/-51)
y=2.8431

Answer 3

ty

Answer 4

what did you get for x?

Answer 5

x = 925/102 and y = 145/51

Answer 6

you put in y=2.8431 into one of the first equations.

Here:

when y=2.8431

6x + 9y = 80
6x = 80 - 9y
x = (80 - 9y) / 6
x = (80 - 9*2.8431) /6
x = 9.06868