The result of subtraction of `7x ` from `0` is ​

The result obtained by subtracting a fraction from another fraction is necessarily a fraction,

What is the percentage change in the result when we add 50 to a certain number x, instead of subtracting 50 from the same number x?

Think of a number.Multiply it by 5. Add 6 to the result.Subtract y from this result.What is the result?

Write each of the following statement by using appropriate grouping symbols: The sum of a-b and 3a-2b+5 is subtracted from 4a+2b-7. Three times the sum of 2x+y-{5-(x-3y)} and 7x-4y+3 is subtracted from 3x-4y+7. The subtraction of x^2-y^2+4x y from 2x^2+y^2-3x y is added to 9x^2-3y^2-x ydot

Subtracting 5 from p, the result is 2.

On subtracting 5/9 from 19/9 , the result is

Which smallest number must be subtracted from 400, so that the resulting number is completely divisible by 7 ?

What least number should be subtracted from 6860, so that 19 be the cube root of the result from this subtraction?