The value was x.
Then 40% of x was added to x.
Now it is $294
x + 40% * x = 294
x + 0.40x = 294
1.4x = 294
x = 210
The value was $210.
Are you going to put the problems so people can help you
4 2/3 is equal to 4 8/12. 3 and 1/4 is equal to 3 3/12. 4 8/12- 3 3/12 = 1 5/12. 1 1/2 would be a better estimate.
Move r to the right side of the equation, G/e^2=m-y+r. Multiply both sides by e^2, G=(m-y+r)*e^2. Then divide both sides by m-y+r (it cannot be 0), G/(m-y+r)=e^2. Then e=+-\sqrt(G/(m-y+r)).