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Inequalities are mathematical expressions involving the symbols >, <, ≥ and ≤. To ‘solve’ an inequality means to find a range, or ranges, of values that an unknown x can take and still satisfy the inequality. In this unit inequalities are solved by using algebra and by using graphs.
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Equal, Greater or Less Than. As well as the familiar equals sign (=) it is also very useful to show if something is not equal to (≠) greater than (>) or less than (<) These are the important signs to know: =. When two values are equal. we use the "equals" sign. example: 2+2 = 4.
than or less than 1 Write the correct symbol in the box: > greater than or < less than. 17 71 23 27 34 27 56 47 82 28 72 97 2 Write a number in each box to make a true number sentence. 74 > 23 < 17 > 98 < 34 < 65 > 3 Tick the number sentences which are true. 1 + 3 > 2 5 – 2 < 9 6 + 3 < 3
When one quantity is greater than the other quantity, we use “more than”. For example, 5 > 3. Less than (<): When one quantity is less than the other quantity, we use “less than”. For example, 8 < 10. Equal to (=): When two quantities are the same, we use “equal to”. For example, 15 = 15.
if b is 1, then the answer is x < 3. but if b is −1, then we are solving −x < −3, and the answer is x > 3. The answer could be x < 3 or x > 3 and we can't choose because we don't know b. So: Do not try dividing by a variable to solve an inequality (unless you know the variable is always positive, or always negative).
Welcome to Quickmath Solvers! Solve. New Example. Help Tutorial. Solve an equation, inequality or a system. Example: 2x-1=y,2y+3=x. What can QuickMath do? QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students.
