Answer:
8x-(-4x-6)=42
8x+4x+6=42
12x=42-6
12x=36
x=36/12
x=3
substitute in an equation of your choice
8(3)-y=42
24-y=42
24-42=y
-18=y
Step-by-step explanation:
Answer:
x= 4 y= -10
Step-by-step explanation:
8x - y = 42
-4x - 6 = y
rearrange -4x - 6 =y to -4x -y = 6
8x - y = 42
-4x - y = 6
4x = 48
48/4 = 12
x=4
subsitute x with 4 adn solve for y = -22
y= -10
