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Sagot :
Answer: The correct option is option 6, (-4,-11).
Step-by-step explanation: You subsitute 2x-3 for y.
2x-3=3x+1
-x=4
x=-4
Plug in -4 for x in an equation.
y = -8 - 3
y = -11
(-4,-11)
Answer:
{y,x} = {-11,-4} or (-4,-11)
Step-by-step explanation:
System of Linear Equations entered :
[1] y - 2x = -3
[2] y - 3x = 1
Graphic Representation of the Equations :
-2x + y = -3 -3x + y = 1
Solve by Substitution :
// Solve equation [2] for the variable y
[2] y = 3x + 1
// Plug this in for variable y in equation [1]
[1] (3x+1) - 2x = -3
[1] x = -4
// Solve equation [1] for the variable x
[1] x = - 4
// By now we know this much :
y = 3x+1
x = -4
// Use the x value to solve for y
y = 3(-4)+1 = -11
Solution :
{y,x} = {-11,-4}
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