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Jonathon Mahoney
Mathematics
7 September, 23:56
Lear equation.
6x + 8y = - 24
3
X
+3
Answers (
1
)
Rolando Choi
8 September, 00:10
0
6x-8y=-3; 10x+4y=8
Solution:
{x, y} = {1/2,3/4}
System of Linear Equations entered:
[1] 6x - 8y = - 3
[2] 10x + 4y = 8
Graphic Representation of the Equations:
-8y + 6x = - 3 4y + 10x = 8
Solve by Substitution:
/ / Solve equation [2] for the variable y
[2] 4y = - 10x + 8
[2] y = - 5x/2 + 2
/ / Plug this in for variable y in equation [1]
[1] 6x - 8• (-5x/2+2) = - 3
[1] 26x = 13
/ / Solve equation [1] for the variable x
[1] 26x = 13
[1] x = 1/2
/ / By now we know this much:
x = 1/2
y = - 5x/2+2
/ / Use the x value to solve for y
y = - (5/2) (1/2) + 2 = 3/4
Solution:
{x, y} = {1/2,3/4}
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