There is no numerical value for 'x' that can make this a true statement.
If an expression is true "for no value" of x, it means that there is no value you can substitute for x to make it true. For example, x=x+1 is true for no value of x, because x is always strictly less than x+1.
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Identities are "equations" that are always true. For example, the equation sin(x) = cos(x) is true for x = pi/4 + kpi radians where k is any integer [ = 45 + 180k degrees], but for any other value of x the equation is not true. By contrast, the equation sin2(x) + cos2(x) = 1 is true whatever the value of x. This is an identity.
To find the missing value in the equation 32.45 x = 253.11, you would divide 253.11 by 32.45. This calculation gives you x = 7.8. Therefore, the missing value that makes the equation true is 7.8.
There is no numerical value for 'x' that can make this a true statement.
If an expression is true "for no value" of x, it means that there is no value you can substitute for x to make it true. For example, x=x+1 is true for no value of x, because x is always strictly less than x+1.
By moving all other values to one side and setting it equal to X. For instance, x-12=24. To find the "x" value, add 12 to both sides of the equation which will result in x=36. We know that x=36 is true because when we "plug-in" or "substitute" every "x" in the original equation with the value "36", we should get matatically true statements. For instance 36-12=24 is a true statement.
True.
TRUE
how about X = X
That means that they are always true. For example: x + x = 2x is true for ANY value of "x", so it is an identity. In contrast, x + 2 = 5 is only true for one specific value of "x", so it is not an identity.
x - 1 = x + 1
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so you are asking: When does 1/x = x% become true? It doesn't make sense. 1/x = x is true when x = 1 But it is never true with the percentage sign at the end.
It's the value that when substituted in for the variable, makes the equation true. Ex: x + 1 = 3 The value 2, when substituted for the variable x, makes the equation true.