-4x + 2 = 6 -4x = 6 - 2 -4x = 4 x = 4 / -4 x = -1
6
6, 5, 4
x^4 is not an inequality. (An inequality has a "bigger than or equal to/less than or equal to/less than/bigger than" sign involved. I.e not an "equals" sign, since this would be an "equality"). But x^4 is not an equality, nor an inequality.
if x2 ≠ 16, then: {x | x ∈ ℜ, x ∉ (4, -4)}
No, because x-6 is an expression: it is not an inequality.
-4x + 2 = 6 -4x = 6 - 2 -4x = 4 x = 4 / -4 x = -1
A number is called a "solution" for an inequality if, when you plug that number into the variable, the inequality becomes true. For example, 4 is a solution to the inequality "x + 5 < 10", because when you plug in 4 for x, you get "4 + 5 < 10", which is true. (4 plus 5 is 9, which is less than 10.) On the other hand, 6 is not a solution to the inequality "x + 5 < 10", because when you plug in 6 for x, you get "6 + 5 < 10", which is false. (6 plus 5 is 11, which isn't less than 10.)
6
6, 5, 4
-8
x ∉ {-6, 6}
That already IS the inequality.
No, it is an expression.
4 & |-4|
There can be no answer because there is no inequality in the question.
9 + x > 6 NB Treat the inequality like an 'equals' sign. There are two exceptions; they are when using fractions or dividing by negative numbers. 9 + x > 6 Subtract '9' from both sides x > 6 - 9 x > -3 Verification ; When x = -4 9 + - 4 = 5 < 6 ( Not true When x = -2 9 + - 2 = 7 > 6 (True)