Answer:
Identity property
Identity property says that any number multiplied by one is itself
Answer:
110
Step-by-step explanation:
Answer:
400 is the answer to the botom and a b c and d
Step-by-step explanation:
You add 2x and 7x to get 9x
so the answer is 9x+5y
you first plug (substitute) in y
-3x - 3(-5x-17)=3
then distribute
-3x+15x+51=3
now combine like terms
12x+51=3
subtract to get 12x by itself
12x=3-51 or 12x=-48
lastly divide by 12 to find x
12x/12=-48/12
x=-4
now find y by plugging x into the other equation
y=-5(-4)-17
y=3
(-4,3)
