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Elimination Method
Posted by D on June 24, 2023 at 6:43 pmEvaluate the following :
2x + y = 8
4x + 3y = 9
Shriya replied 3 months, 1 week ago 2 Members · 1 Reply -
1 Reply
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The given system of equations is:
2x + y = 8
4x + 3y = 9
Multiplying the first equation by 3 and subtracting the second equation from it:
6x + 3y – (4x + 3y) = 24 – 9
2x = 15
x = 15/2
Substituting the value of x in the first equation:
2(15/2) + y = 8
15 + y = 8
y = -7
So the solution to the system of equations is x = 15/2 and y = -7.