Answer:
Step-by-step explanation:
10x+3y=5;x=y-4
Solution :
{x,y} = {1,5}
System of Linear Equations entered :
[1] -10x + 3y = 5
[2] x - y = -4
Graphic Representation of the Equations :
3y - 10x = 5 y + x = -4
Solve by Substitution :
// Solve equation [2] for the variable x
[2] x = y - 4
// Plug this in for variable x in equation [1]
[1] -10•(y -4) + 3y = 5
[1] - 7y = -35
// Solve equation [1] for the variable y
[1] 7y = 35
[1] y = 5
// By now we know this much :
x = y-4
y = 5
// Use the y value to solve for x
x = (5)-4 = 1
Solution :
{x,y} = {1,5}
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