7/7q+21= x /5q^2-45 then x=?
1 answer:
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Answer:
and
Step-by-step explanation:
Given
Expression = -9
Required
Select all equivalent expressions
To do that, we examine each of the options.
<em></em>
<u><em>First Option</em></u>
This can be rewritten as
So, the expression becomes
<em>Hence, |-9| is equivalent to -9</em>
<u><em>Second Option</em></u>
<em>So, the expression is not equivalent to -9</em>
<em></em>
<u><em>Third Option</em></u>
This can be rewritten as
So, the expression becomes
<em>Hence, -|-9| is equivalent to -9</em>
<em>Fourth Option</em>
This can be rewritten as
<em>Hence, -(-9) is not equivalent to -9</em>
<em>Fifth Option</em>
The distance from 0 to 9
This is calculated as thus;
<em>Hence, the difference from 0 to 9 is not equivalent to -9</em>