# Algebra, explain?

posted by .

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?

• Algebra, explain? -

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

• Algebra, explain? -

Okay, when I checked my answer, how come I got 72? when I put 8 As A into the equation.

• Algebra, explain? -

That's what the original problem states: 72 = 72

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

• Algebra, explain? -

So I could have two answers... ? 8 and 72?

• Algebra, explain? -

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.

## Similar Questions

1. ### algebra

Solve: 0.1p + 2.1 = 4.6p - 1.9 + 0.5p I am getting all confused on how to solve this problem. can someone explain it to me?

I just cannot seem to be able to grasp the concept of solving polynomial inequalities. Can someone please explain, step by step, how to solve them?

can someone please help explain how to do this problem. i have a previous posting where i tried to work the problem out, and someone tried to explain where i was confused, but im still confused. 4(2n+1)=3(6n+3)+1
4. ### Algebra

I have a math CRCT test today and I needed some help on a last minute review problem. Can someone please explain how to solve this?
5. ### Algebra

How would you solve this problem: Slove y=1/4-1 if the domain is(-4,-2,0,2,4) Could someone please explain to me how to do this?
6. ### Algebra, explain how to please

Can someone explain to me how to solve -14=2/5(9-2b) It would be greatly appreciated thank you
7. ### algebra

i do not understand how to solve for x and y can someone please explain it to me. an example of the problem i am workin on is 6x-4y=72
8. ### Science

The problem I'm trying to answer is: Ann is driving down a street at 59 km/h. Suddenly a child runs into the street. If it takes Ann 0.719 s to react and apply the brakes, how far will she have moved before she begins to slow down?
9. ### Algebra

Can someone please help me with math problem and explain to me step by step how to solve it so I will know how solve other problems like this Thank you in advance Multiply and then, if possible, simplify by factoring /7x /21y
10. ### pre algebra help

9. how you would convert the repeating, non terminating decimal to a fraction?

More Similar Questions