Solve the simultaneous equations. 2x + y = 18, x−y=6

In this question, we are going to find the values of x and y from the equations above. To start off, we will number the equations:(1): 2x+y=18(2): x-y=6now we will add (1) to (2) as that will get ride of the y component and we can solve for x. Now we have that 3x=24. we can divide through by 3, getting x=24/3=8. now we can substitute that into (1) getting that 2(8)+y=18, hence we get that y=18-16=2. we can double check these by subbing the values into (2) and checking they hold.

RR
Answered by Ruby R. Maths tutor

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