Question

Solve graphically 2x + 3y = 1; 3x-y = 7​

Answer 1

Answer:

// Solve equation [2] for the variable y

[2] y = 3x - 7

// Plug this in for variable y in equation [1]

[1] 2x - (3x-7) = 1

[1] -x = -6

// Solve equation [1] for the variable x

[1] x = 6

// By now we know this much :

x = 6

y = 3x-7

// Use the x value to solve for y

y = 3(6)-7 = 11

Solution :

{x,y} = {6,11}

Answer 2

Answer:

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