Answer:
y=3x+6, y=5x,
Step-by-step explanation:
Answer:6
Step-by-step explanation: PQRS is 2x the size of ABCD
Answer:
3x+12 is the sum
9x-2 is differences
Step-by-step explanation: Combine like terms
Answer:
x = 2, y = -3
Step-by-step explanation:
Add them together and get
9x + 8y - 9x - 9y = -6 + 9
-y = 3
so y = -3.
Sub it into the first equation and get
9x + 8(-3) = -6
9x - 24 = -6
9x = -6 + 24 = 18
x = 18/9 = 2