141k views
1 vote
5x−7y=58

y=−x+2

help me please

2 Answers

3 votes

Answer:

x=6,y=−4

Explanation:

User Anusha Dharmasena
by
8.3k points
7 votes

Answer:

{x,y} = {6,-4}

System of Linear Equations entered :

[1] 5x-7y=58

[2] y=-x+2

Equations Simplified or Rearranged :

[1] 5x - 7y = 58

[2] x + y = 2

Graphic Representation of the Equations :

-7y + 5x = 58 y + x = 2

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = -x + 2

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

[1] 5x - 7•(-x +2) = 58

[1] 12x = 72

// Solve equation [1] for the variable x

[1] 12x = 72

[1] x = 6

// By now we know this much :

x = 6

y = -x+2

// Use the x value to solve for y

y = -(6)+2 = -4

Solution :

{x,y} = {6,-4}

Explanation:

User KyleCrowley
by
7.8k points

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