Question

please help me!!!
solve this system of linear equations. separate the x- and y-values with a comma.
-16x=50-14y
-7x=77-14y

Answer 1

A system can be solved by substitution or elimination.

Answer 2

Lets do substitution method.

Answer 3

Okay... so...
-16x=50-14y
-7x=77-14y

-16x = 50 - 14y
x = 50/-16 - 14y/-16

Answer 4

Simplify that to get....

Answer 5

x = 50/-16 - 14y/-16
x = - 3.125 + 14/16y

Answer 6

Now plug that into the other equation and solve for y.

Answer 7

-7x=77-14y
-7(- 3.125 + 14/16y ) = 77 - 14y
21.875 - 6.125y = 77 - 14y

Answer 8

21.875 - 6.125y = 77 - 14y
+6.125y +6.125y

Answer 9

21.875 = 77 - 7.875y
-77 -77

Answer 10

so -55.125=-7.875y

Answer 11

right?

Answer 12

Solve for y now. and then plug the y value into the OTHER equation to solve for x.

Answer 13

and then you shall have the system's solution! :)

Answer 14

thanks guys... :D

Answer 15

Welcome, please medal if you would like. :)