How can I transform the equation 4=x-y into one that begins with "y="?
Would I subtract x from both sides to get -x+4=-y? This doesn't look right at all.
Or would I add y to both sides and then subtract 4 to get y=x-4? This way seems more correct to me.
Please confirm which way is correct... thanks very much.
To transform the equation 4 = x - y into an equation that begins with "y =", you need to isolate the variable "y" on one side of the equation.
To do this, let's go step by step:
1. Start with the equation 4 = x - y.
2. First, let's get rid of the -y term on the right side of the equation. To do this, you can add y to both sides of the equation:
4 + y = x - y + y.
Simplifying, we have:
4 + y = x.
3. Now, let's rearrange the equation so that "y" is on the left side:
y + 4 = x.
4. Finally, swap the sides of the equation to get an equation that begins with "y =":
x = y + 4.
Therefore, the correct way to transform the equation 4 = x - y into one that begins with "y =" is:
y = x - 4.
So, your intuition was correct. You would add y to both sides and then subtract 4 from both sides to isolate "y" and get the desired equation.