There is not enough information in your question to give an exact value for x, ie x=7 or x=19. This could be because:
(a) The maths question you are trying to answer has more details, but you haven't included them in your question on Answers.com.
or
(b) You are not expecting to discover the exact value of x, but just want to simplify the expression.
Presuming that (b) is true, the only way you can simplify this expression is to combine the two numbers into a single number:
So -9 and -15 add to make -24
Therefore to say x-24 is equivalent to saying x-9-15
You could also correctly say that x - 9 - 15 = x - 24
But as I have mentioned above, this is not "solving" x - 9 - 15, it is just "simplifying" it.
x-9 = 15 x = 15+9 x = 24
9 x 15 = 135
x - 9 is an expression, neither an equation not an inequality. An expression cannot have a solution.
x/5 = 9/15 15 x = 45 x = 3
x^2 +9 =x^2 -9 9=-9 No solution
x2+24x+144 = 9 x2+24x+144-9 = 0 x2+24x+135 = 0 (x+9)(x+15) = 0 x = -9 or x = -15
x-9 = 15 x = 15+9 x = 24
What is the solution set of 2x2 + x = 15
x=9 is as simple as it gets. The question is the solution.
9 x 15 = 135
x - 9 is an expression, neither an equation not an inequality. An expression cannot have a solution.
what the solution to this equation x+15=28 If you mean: x+15 = 28 then the value of x works out as 13
If you mean x+5y = 4 then (9, -1) is the solution
24 this is how it breaks down -15 + x = 9 => x= 9 + 15 => x= 24
x - 9 = 0 x - 9 = 0 x - 9 = 0 x - 9 = 0
x/5 = 9/15 15 x = 45 x = 3
x^2 +9 =x^2 -9 9=-9 No solution