0
2x - y = 55
x + 2y = 2
Multiplying the second equation by -2 gives us
2x - y = 55
-2x - 4y = -4
Adding both equations together gives us
-5y = 51
y = -10.2
Plugging that back into one of the original equations gives
x + 2(-10.2) = 2
x - 20.4 = 2
x = 22.4
So x = 22.4 and y = -10.2
Add your answer:
Earn +20 pts
How do you factor 2y2-26y plus 60?
2(y - 3)(y - 10)
What is the factorization of this trinomial 10x2y2 plus 8xy2-210y2?
10x2y2 + 8xy2 - 210y2 = 2y2(5x2 + 4x - 105) = 2y2(5x2 + 25x - 21x - 105) = 2y2(x + 5)(5x - 21).
How do you find the y intercept for x equals 2y2 plus 3y plus 1?
The y-intercept is the place (or places) where x=0 . So if 'x' is 2y2+3y+1 , then all you have to do is find places where 2y2+3y+1 is zero, and those are your y-intercepts.
How many terms are in -3x2 plus 2y2 plus 5xy-2y plus 5x2-3y2?
All six of them
Solution to the following system of equations 5x2 - 2y2 equals -20 7x2 - y2 equals 152?
5x2 - 2y2 = -20 7x2 - y2 = 152 Eq1 - 2*Eq2: -9x2 = -324 so that x2 = 36 Substituting the value of x2 in Eq1: 2y2 = 200 so that y2 = 100 The four solutions are (-6, -10), (-6, 10), (6, -10) and (6,10)
How do you factor 2y2-26y plus 60?
2(y - 3)(y - 10)
What is 18y3 plus 2y2 plus 1?
It is a cubic function of y.
What does 2y2 plus 4 equal to?
this equals to 12
What is y2 plus y2?
y2 + y2 = 2y2
What is the factorization of this trinomial 10x2y2 plus 8xy2-210y2?
10x2y2 + 8xy2 - 210y2 = 2y2(5x2 + 4x - 105) = 2y2(5x2 + 25x - 21x - 105) = 2y2(x + 5)(5x - 21).
How do you find the y intercept for x equals 2y2 plus 3y plus 1?
The y-intercept is the place (or places) where x=0 . So if 'x' is 2y2+3y+1 , then all you have to do is find places where 2y2+3y+1 is zero, and those are your y-intercepts.
How many terms are in -3x2 plus 2y2 plus 5xy-2y plus 5x2-3y2?
All six of them
Solution to the following system of equations 5x2 - 2y2 equals -20 7x2 - y2 equals 152?
5x2 - 2y2 = -20 7x2 - y2 = 152 Eq1 - 2*Eq2: -9x2 = -324 so that x2 = 36 Substituting the value of x2 in Eq1: 2y2 = 200 so that y2 = 100 The four solutions are (-6, -10), (-6, 10), (6, -10) and (6,10)
Factor 5x3 plus 40y6?
5(x + 2y2)(x2 - 2xy2 + 4y4)
What is the answer to 2y² plus y-1?
1
Is 18 times y to the cube plus 2 times y to the square plus 1 a polynomial if so what kind?
Yes, 18y3 + 2y2 + 1 is a polynomial; it is a cubic expression. If it were expanded to form an equation, then it would be a cubic equation (or higher), capable of solution.
What is the solution- Algebraic Fractions with Exponents where the answer is a half?
x4 / 2x4 396(x2 + y2) / 396(2x2 + 2y2)
