Step-by-step explanation:
In this problem, all we have to do is replace x and y with the values we've been given.
It can be helpful to think of 3x as 3 * x (which is the same exact thing), so I'll write it out that way.
3*x - 4*y
(replace)
3*4 - 4*3
(multiply (doing this step first because of PEMDAS))
12 - 12
(subtract)
0
Answer:
0
Answer:
a
Step-by-step explanation:
i think
You subtract the second number from the first number.
So 547.25 - 327.875
And you should get the answer 219.375
Answer:
2x
Step-by-step explanation:
x2+7x=9
x+x+2+7=9
2x+9=9
=2
