Q. If −x−10y=9 is a true equation, what would be the value of −10y−x ?Answer:
Identify Given Equation: Identify the given equation and the expression we need to find the value of.Given equation: −x−10y=9Expression to find: −10y−x
Rearrange Terms: Notice that the expression we need to find the value of is just a rearrangement of the terms in the given equation.Rearrange the terms in the given equation to match the expression we need to find.−x−10y=9 can be rewritten as −10y−x=9
Find Value: Since the rearranged expression is equivalent to the given equation, the value of the expression will be the same as the value of the given equation.Therefore, the value of −10y−x is 9.