<em>The right question is:</em>
Answer:
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Step-by-step explanation:
Given
Required
Solve for x and y
Make y the subject of formula in the second equation
Substitute in the first equation
Open the bracket
Collect Like Terms
Multiply both sides by 2
Divide both sides by 31
Recall that
So;
Hence;
<em></em><em> and </em><em></em>
4.5
a=5your answer right answer right answer
Work attached. Hope this helped! :)
is the last one