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The way for a fraction to be undefined is to have the lower number to be zero. So you only look at the bottom of the fraction and find what it would take to make it equal to zero.

x+3=0

You would have to subtract three from both sides and you would get x= -3.

So the answer is -3.

Q: For which value of x is the expression x-4 over x plus 3 undefined?

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2a+b=2a+b. Without a value for a and b, the expression has no value.

Unless you have a value for 'h', the answer will just be an expression: 10 + 7h

Related questions

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The restricted value in the domain is x=-2 because if x were equal to -2, the denominator would be 0 and the expression would become undefined.

The expression X/(X+8) is undefined at X=-8, because that would be division by zero.

-38

You don't "solve" an expression. You can solve an equation; an expression can be simplified or otherwise manipulated, and if you know the value of "x" (in this case), you can evaluate its value.

++ is an operator that increments the operand. The value of the operand in the expression is incremented first if the ++ is before the operand. The value of the operand in the expression is the same value if the ++ is after the operand.

You find midpoint with y2-y1 over (divided by) x2-x1. So the midpoint of (2,2) (2,2) is undefined since you can't divide by zero. ;)

That depends entirely upon the (undefined) value of x. Therefore, this question is unanswerable.

The value expression of 60 minus 20 plus 70 is equal to 110.

It is 25.

It is a quadratic expression which when factored is (2y+3)(y+5)

It is 2x + 5. The value of this expression will depend on the value of x: each different value of x will give a different value for the expression.