SOLUTION: Simultaneous equation exercise 7: solving problem using simultaneous equations Q8: find the point where the lines 3x+2y=29 and 3y-x=5 intersect

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Question 771480: Simultaneous equation
exercise 7: solving problem using simultaneous equations
Q8: find the point where the lines 3x+2y=29 and 3y-x=5 intersect
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
3x + 2y = 29 ...1
-x + 3y = 5 ....2
Multiply (2) by 3
3x + 2y = 29 ...1
-3x + 9y = 15...3
Add (1) + (3)
11y = 44
y = 4
Substitute y = 4
into Eq(1)
3x + 2y = 29
3x +2(4) = 29
3x + 8 = 29
3x = 29 - 8
3x = 21
x = 7
{7,4}
Hope this helps.
:-)