Asked by Allyson

So I have to solve this problem
9a=6(a+4)
And then I wrote down:
9a=6a+24
but I don't know what to do from there, can someone explain to me please?
Answered by Ms. Sue
9a=6a+24

The next step is to combine like terms and get the knowns on one side and the unknowns on the other.

Subtract 6a from both sides of the equation.

9a - 6a = 6a - 6a + 24
3a = 24

Divide both sides by 3 to find the value of a.

3a/3 = 24/3
a = 8

Answered by Allyson
Okay, when I checked my answer, how come I got 72? when I put 8 As A into the equation.
Answered by Ms. Sue
That's what the original problem states: 72 = 72

9a=6(a+4)
9(8) = 6(8 + 4)
72 = 72

Answered by Allyson
So I could have two answers... ? 8 and 72?
Answered by Ms. Sue
No.

You only need to find what a represents. As we found, in this problem a = 8.

You proved it by substituting 8 for a in the original problem.

There are no AI answers yet. The ability to request AI answers is coming soon!