Question

Solution of 2x+y-3=0 and 2x-3y-7=0 is?

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Answer 1

Step-by-step explanation:

2x+y=3

y=3-2x

Put this in eq. 1

2x-9+6x=7

8x=16

x=2

y=3-2×2

y=-1

Answer 2

Answer:

plzz mark as a brainlist answer.

Step-by-step explanation:

Step by Step Solution:

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System of Linear Equations entered :

[1] 2x+y-3=0

[2] 2x-3y-7=0

Equations Simplified or Rearranged :

[1] 2x + y = 3

[2] 2x - 3y = 7

Graphic Representation of the Equations :

y + 2x = 3 -3y + 2x = 7

Solve by Substitution :

// Solve equation [1] for the variable y

[1] y = -2x + 3

// Plug this in for variable y in equation [2]

[2] 2x - 3•(-2x+3) = 7

[2] 8x = 16

// Solve equation [2] for the variable x

[2] 8x = 16

[2] x = 2

// By now we know this much :

x = 2

y = -2x+3

// Use the x value to solve for y

y = -2(2)+3 = -1

Solution :

{x,y} = {2,-1}