jaxondbagley
29.10.2019 •
Mathematics
Given: line segment ab is congruent go to line segment cd
line segment ae is congruent to line segment de
prove: triangle aec is congruent to triangle deb
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Ответ:
x+2y=3;3x-2y=5
Solution :
{x,y} = {2,1/2}
System of Linear Equations entered :
[1] x + 2y = 3
[2] 3x - 2y = 5
Graphic Representation of the Equations :
2y + x = 3 -2y + 3x = 5
Solve by Substitution :
// Solve equation [1] for the variable x
[1] x = -2y + 3
// Plug this in for variable x in equation [2]
[2] 3•(-2y+3) - 2y = 5
[2] - 8y = -4
// Solve equation [2] for the variable y
[2] 8y = 4
[2] y = 1/2
// By now we know this much :
x = -2y+3
y = 1/2
// Use the y value to solve for x
x = -2(1/2)+3 = 2
Solution :
{x,y} = {2,1/2}
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Step-by-step explanation: