9514 1404 393
Answer:
- inverse operation are used
- the variable needs to be isolated
Step-by-step explanation:
A solution is always of the form ...
variable = something
In order to get this form, the variable needs to be isolated (put by itself on one side of the equal sign).
In general, isolating the variable involves using inverse operations to "undo" whatever is done to the variable. These are generally applied in the reverse order of the operations that are done to the variable. The list of operations done and their order can be identified using the Order of Operations to consider how an equation would be evaluated for some value of the variable.
answer: 15
Step-by-step explanation: you would take the 21 and subtract 6 from it and you get 15
Answer:
Sarah = 78
Lee = 79
Step-by-step explanation:
98 + 100 + 65 + 78 + 98 + 46 + 100 + 100 + 45 + 50 = 780
780÷10= 78
97 + 67 + 89 + 99 + 100 + 45 + 79 + 89 + 58 + 67 =
790
790÷10=79
Answer:
27
Step-by-step explanation:
<h2>
Answer:</h2>
The statement is false.
<h2>Explanation:</h2>
<em>Take, for example, numbers 8 and -4. Let's find the difference:</em>
(8) - (-4)= 8+4= 12.
<em>The difference is positive while both of the values are not positive. Hence, the statement is false.</em>
