Respostas
respondido por:
1
Sistema
x - 5y = 6 ( x 2 )
5x + 2y = 3 ( x 5 )
2x - 10y = 12
25x + 10y = 15 Corta y
27x = 27
x = 1
5x + 2y = 3
5.1 + 2y = 3
2y = 3 - 5
2y = -2
y = -1
Logo:
x = 1
y= -1
x - 5y = 6 ( x 2 )
5x + 2y = 3 ( x 5 )
2x - 10y = 12
25x + 10y = 15 Corta y
27x = 27
x = 1
5x + 2y = 3
5.1 + 2y = 3
2y = 3 - 5
2y = -2
y = -1
Logo:
x = 1
y= -1
Simplifying
2y + -3 = 5y + -6
Reorder the terms:
-3 + 2y = 5y + -6
Reorder the terms:
-3 + 2y = -6 + 5y
Solving
-3 + 2y = -6 + 5y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-5y' to each side of the equation.
-3 + 2y + -5y = -6 + 5y + -5y
Combine like terms: 2y + -5y = -3y
-3 + -3y = -6 + 5y + -5y
Combine like terms: 5y + -5y = 0
-3 + -3y = -6 + 0
-3 + -3y = -6
Add '3' to each side of the equation.
-3 + 3 + -3y = -6 + 3
2y + -3 = 5y + -6
Reorder the terms:
-3 + 2y = 5y + -6
Reorder the terms:
-3 + 2y = -6 + 5y
Solving
-3 + 2y = -6 + 5y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-5y' to each side of the equation.
-3 + 2y + -5y = -6 + 5y + -5y
Combine like terms: 2y + -5y = -3y
-3 + -3y = -6 + 5y + -5y
Combine like terms: 5y + -5y = 0
-3 + -3y = -6 + 0
-3 + -3y = -6
Add '3' to each side of the equation.
-3 + 3 + -3y = -6 + 3
Perguntas similares
7 anos atrás
7 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
9 anos atrás
2y + -3 = 5y + -6
Reorder the terms:
-3 + 2y = 5y + -6
Reorder the terms:
-3 + 2y = -6 + 5y
Solving
-3 + 2y = -6 + 5y
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-5y' to each side of the equation.
-3 + 2y + -5y = -6 + 5y + -5y
Combine like terms: 2y + -5y = -3y
-3 + -3y = -6 + 5y + -5y
Combine like terms: 5y + -5y = 0
-3 + -3y = -6 + 0
-3 + -3y = -6
Add '3' to each side of the equation.
-3 + 3 + -3y = -6 + 3