x - 3 is not an inequality.
In solving an inequality you generally use the same methods as for solving an equation. The main difference is that when you multiply or divide each side by a negative, you have to switch the direction of the inequality sign. The solution to an equation is often a single value, but the solution to an inequality is usually an infinite set of numbers, such as x>3.
The question cannot be answered since it contains no inequality.
You solve an inequality in the same way as you would solve an equality (equation). The only difference is that if you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality sign. Thus, if you have -3x < 9 to find x, you need to divide by -3. That is a negative number so -3x/(-3) > 9/(-3) reverse inequality x > -3
You need to reverse the inequality symbol when multiplying both sides of an inequality by a negative number because you are changing the sign of both sides of the equation. Since inequality, such as "less than", means "to the left of" on the number line (where left is minus and right is plus) then a number that is less than another will be greater than the other if the signs were reversed. Example: 3 is less than 4, but -3 is greater than -4.
If you mean (x-3)(x+5) = 0 then x = 3 or x = -5
-3x + 7 < -3 -3x < 4 x > -(4/3) ■
Let us look at an example. Here is an inequality: 3 is greater than 2.We write this as: 3 > 2.Now let us divide both numbers by a negative number. Let us divide by -1 to keep things as simple as possible.3/-1 = -32/-1 = -2So now the sign of the inequality must be reversed:-3 < -2.-3 is smaller than -2 and so the sign was reversed to show this. This holds true for any example we can think of.Why is this so?If we were to divide two numbers by a positive number then we would not need to change the sign of the inequality. 4 > 2. (divide by 2) 2 > 1.However, when we divide a positive number by a negative the result is always negative. A number that was higher when positive will be lower when negative.Think of a number as representing the distance from 0.4 is further away from 0 than 3 is. When the distance is greater in a positive way then the number is larger. However when the difference is greater in a negative way, such as with -4 and -3 (-4 is further away from 0) then the number is smaller.This is what happens when we divide by a negative number and so the inequality sign must be reversed to show this.
Would have helped to have signs, but here's are two possible solutions: (4x + 3)(4x + 3) or (4x - 3)(4x - 3) depending on whether 24x is positive or negative.
For the same reason you must flip it when you multiply by a negative number. An example should suffice. 2 < 3 If you multiply by -1, without switching the sign, you get: -2 < -3, which is wrong. Actually, -2 > -3. Look at a number line if you are not sure about this - numbers to the left are less than numbers further to the right. Dividing by a negative number is the same as multiplying by the reciprocal, which in this case is also negative. These signs are strictly the "Greater than" and "Less than" signs. The inequality sign is an = with a / stroke through it. If you divide an inequality by -1 it remains an inequality.
The inequality sign changes direction. So 2<3 Multiply by -2 and you get -4>-6 (similarly with division).
It is a double inequality defining an interval. -1 ≤ n+2 ≤ 6 implies -3 ≤ n ≤ 4
The inequality with the terms 2x, 3 and 7 can be written as 2x -3 = 7, 2x + 3 = 7, 2x * 3 = 7, and 2x/3 = 7. This means that the solutions are 5, 2, 7/4, and 21/2 respectively.
If the highest degree of an equation is 3, then the equation must have 3 solutions. Solutions can be: 1) 3 real solutions 2) one real and two imaginary solutions.
Negative 2/3 is smaller than negative 1/3.
(x - 5) â‰¥ -2 x â‰¥ 3
-3+-2=-5. In word form: negative three plus negative two equals negative five.
negative two thirds = -2/3
height (5'2), it would 5 feet two inches.
Whenever you multiply (or divide) both sides an inequality by a negative number. Example: 3 < 5, therefore -3 > -5 -2x < 10 becomes (by multiplying by -1/2): x > 5 x(x+1) > 0 In this type of inequality, you can divide both sides by x, but you have to consider the two cases, that x > 0 and that x < 0.
the solution for the inequality 4x + 2 - 6x < -1 was x < 3/2
You can write this as two equations, and solve them separately. The two equations are:x - 19 = -3and:-x - 19 = -3