0
What is the solution for 3x plus y equals 4 and x plus y equals 0?
Wiki User
∙ 11y ago
3x + y = 4
x + y = 0
solve for y
y = -3x +4
y = -x
substitute y = -x into y = -3x +4, so the result is: -x = -3x +4
solve for x
-1x = -3x +4
+3x +3x
2x = 4
--------
2
x = 2
then plug the x-value into one of the bolded equations and solve for y.
I chose
y = -x
y = -(2)
y = -2
so the final answer is the ordered pair (2, -2)
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the solution to 3x-3 equals -3x plus -3?
x = 0
True or false the solution of the equation of x squared plus 4x equals 0 is identical to the solution of 3x squared plus 12x equals 0?
True because in both equations x = 0 or x = -4
What is the solution of 2y plus 3x equals 0 x equals -1?
2y + 3x = 0 2y + -3 = 0 2y = 0 + 3 , 2y = 3 y = 3/2 y = 1.5 x = -1
What is the answer to 3x plus 2 equals 0?
3x + 2 = 0 3x = -2 x = -2/3
Is x equals -3 a solution to the equation 2x plus 8 equals 3x plus 11?
According to my calculations, yes. 2x+8=3x+11 -8 2x=3x+3 -2x 0=x+3 -3 -3=x
What is the solution to 3x-3 equals -3x plus -3?
x = 0
True or false the solution of the equation of x squared plus 4x equals 0 is identical to the solution of 3x squared plus 12x equals 0?
True because in both equations x = 0 or x = -4
Can you put the equation x2 - 5 -4x2 plus 3x equals 0 in the form ax2 plus bx plus c equals 0?
x2-5-4x2+3x = 0 -3x2+3x-5 = 0 or as 3x2-3x+5 = 0
What is the solution of 2y plus 3x equals 0 x equals -1?
2y + 3x = 0 2y + -3 = 0 2y = 0 + 3 , 2y = 3 y = 3/2 y = 1.5 x = -1
What is the answer to 3x plus 2 equals 0?
3x + 2 = 0 3x = -2 x = -2/3
Is x equals -3 a solution to the equation 2x plus 8 equals 3x plus 11?
According to my calculations, yes. 2x+8=3x+11 -8 2x=3x+3 -2x 0=x+3 -3 -3=x
How do you solve x2 plus 3x plus 3 0?
x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.
What is the answer to negative 6x plus 9 equals 9-3x?
the answer is -3x = 0
3x plus y equals 4 x plus y equals 0?
x = y = 0 ?
What is the solution of this quadratic equation x2 plus 3x-10 equals 0?
x2 + 3x - 10 = (x + 5)(x - 2) ⇒ x = -5 or 2
X2 plus 3x plus 10 equals 0?
-2
5x equals 3x plus 1000 plus 0?
5x = 3x+1000+0 5x-3x = 1000 2x = 1000 x = 500
