Tim said that to solve the equation x-2=9, he would have to subtract 2 from both sides of the equation. Is Tim correct? Explain.
No he is not.
If you subtract two from the left hand side you get -4.
So to solve the equation you add 2 to both sides
Thank you!!
Yes, because - 2 + 2 will be a variable and 9 + 2 will be 11 so the answer would be x=11.
Yes, Tim is correct. To solve the equation x - 2 = 9, we want to isolate the variable x on one side of the equation. The goal is to rewrite the equation in the form of x = some value.
To do this, we need to perform the same operation on both sides of the equation in order to maintain equality. In this case, we want to isolate x, so we need to eliminate the -2 on the left side.
Since -2 is being subtracted from x, we can reverse this operation by adding 2 to both sides of the equation:
x - 2 + 2 = 9 + 2.
On the left-hand side, the -2 and +2 cancel each other out, leaving us with just x. On the right-hand side, 9 + 2 gives us 11:
x = 11.
So, by adding 2 to both sides of the equation, we have successfully isolated x, and the solution to the equation x - 2 = 9 is x = 11.
Therefore, Tim's explanation is correct.