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Are you able to turn the sentence into an equation?

yeah

i think that is what im supposed to do, but im having trouble setting it up

Okay, no problem. Do you have a guess as to how you would start?

4x-10 is this one side of the equation?

Can you write an equation for right now? Let's say time = 0 right now.

yeah

Use C and M for your variables.

okay but how would i set it up?

"Christopher is 4 times as old as Michael." Write that algebraically.

4m ?

What is 4M?

4 times michaels age

4 * M

So how would you write a formula for "Christopher is 4 times as old as Michael?"

4m=10(4x-9) ? i have no idea ._.

That's okay. Not to worry. It's C = 4M

Does that make sense?

oh okay i know that 10 has to be outside the parenthesis

no wait..

does 9 go outside?

because it says 9 times as old as Christopher

ohhh

Yes, right! The 9 goes outside.

okay so it would be 9(x-10) ?

Yes! But what is x?

i mean c. im using x instead of c

Remember, you need an equal sign, and stuff on both sides of it.

Okay, we can use x instead of C. But then what are we using instead of M?

Remember, for now, we are keeping their ages separate.

i guess we can use y or m but i like x instead of c

So now, we need to do our "10 years ago" formula.

would it be the one i mentioned before?

Yes, but you used x. It should be y.

And you need your full formula.

But you're doing great.