Question

Solve the following systems of equations by graphing.

x+y = 20
-5x + y = -40
9.
x
1
.
.
.
.
A
3
D
C
:
10.
-2x + 4y = 16
9x -8y = 8
x
.
T
.
4
3
D
1
5
y

Answer 1

Explanation:

in the first photo, x = 10 and y = 10

in the second photo, x = 8 and y = 8