Question

Evaluate the following expression using the given values:

Find x − 3y if x = 3 and y = −2.
−9
−3
3
9

Answer 1

What u think

Answer 2

I am unsure. I would like to learn though

Answer 3

How do I find it?

Answer 4

Substitute x= 3 and y= -2
3 - 3(-2)
And now simplify the multiplying part which is the right side
Forget about the 3 on the left for a while and let's focus on -3(-2)
Multiply -3 * -2 that would equal to 6
Why? Because negative * negative is positive and 3 * 2 is 6
Now get that in the original expression instead of the -3(-2)
We would get
3 + 6
What would that be equal to

Answer 5

Would that be Positive 9?

Answer 6

Yaay you're right

Answer 7

Thank you so much! I really needed help with explaining it. thank you(:

Answer 8

You welcome :)