Answer:
x = 8
y = 10
Step-by-step explanation:
Multiply the first equation by -1
-1 * (-8x + 4y) = -24
8x - 4y = 24 now add this to second equation
8x - 4y - 7x + 4y = 24 - 16 add like terms (keep in mind, -4y will eliminate +4y)
x = 8 to find the value of y we can use this information
-8x + 4y = -24 replace x with 8
-8*8 + 4y = -24
-64 + 4y = -24 add 64 to both sides
4y = 40 divide both sides by 4
y = 10
