Question 826320: Solve each system of equations:
2x= y+12
3x+2y= -3
What I did:
(2x=y+12)2
3x=-2y-3
4x=2y+28
3x=-2y-3 Found 2 solutions by TimothyLamb, Alan3354:Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
2x = y + 12
3x + 2y = -3
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put the system of linear equations into standard form:
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2x - y = 12
3x + 2y = -3
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copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = 3
y = -6
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system matrix
2 -1
3 2
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inverse of system matrix
0.28571429 0.14285714
-0.42857143 0.28571429
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determinant of system matrix = 7
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You can put this solution on YOUR website! Solve each system of equations:
2x= y+12
3x+2y= -3
What I did:
(2x=y+12)2
3x=-2y-3
4x=2y+28
3x=-2y-3
=============
What I would do:
2x= y+12 --> 2x - y = 12
3x+2y= -3
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Put in standard form
2x- y = 12
3x +2y= -3
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Multiply eqn 1 by 2
4x- 2y = 24
3x +2y= -3
-------------------- Add
7x = 21
x = 3
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Sub for x in any eqn and find y
