SOLUTION: 4 times a number equals 3 times the same number + 9
4x=3x+9
X=3x+9/4
X=3
Algebra.Com
Question 827375: 4 times a number equals 3 times the same number + 9
4x=3x+9
X=3x+9/4
X=3
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Let's write that whole sequence of steps properly with the correct conventions:
----- this part was good.
---- you at least must show proper associate using grouping symbols, and properly.
---- and you found this.
Try checking that answer:
, FALSE!
What did you do wrong?
Starting from your first good equation,
, good as I said;
, Additive Inverse of 3x,
, combined like terms and rule about additive inverses.
That is the answer for x.
Check: Does that answer work?
, true.
The trouble was that you have no justification to go from
to
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