x + 3y + 2z = 6
-3x + y + 5z = 29
-2x - 3y + z = 14
This just did not work out for me. Here is my work:
I first solved Equation #1 for x.
x = -3y - 2z + 6
Then, I did substitution, and replaced x for -3y - 2z + 6 in equations #2 and 3.
-3(-3y - 2z +6) + y + 5z = 29
-2(-3y - 2z +6) - 3y + z = 14
That is the same as:
10y + 11z = 47
3y + 5z = 26
Would elimination be the next step?
why not use elimination right from the beginning
look at the y's
If you add the first and the last, they are gone
If you add 3times the second to the last, they are gone.
now you have 2 equations in x and z
I finished it up like I said with elimination and got y = -3. Is this correct?
If not, I'll try it the way you suggested with elimination the whole way through.
two systems of equations are given below for each system, choose the best description of it solution. 1) the system has no solution 2) the system has a unique solution 3) the system has a infinitity many solutions. they must satisfy the following equation
Which of the following represents all solutions (x,y) to the system of equations created by the linear equation and the quadratic equation y=x^2+9
x+4y=3, 2x+8y=4 The system of equations above has how many solutions?
If you try to solve a linear system by the substitution method and get the result 0 = 8, what does this mean? A. The system has one solution, (0,8). B.The system has one solution, (8,0). C.The system has no solutions. D.The system has an infinite number of
Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions. x^2=3x-6
2a+3b-4c=7, a-b+2c=6 a) find an ordered triple of numbers (a,b,c) that satisfies both equations b) can you find a second ordered triple that satisfies both equations c) solve for b in terms of a, and solve for c in terms of a. how many solutions does this
1.) Which best describes a system of equations that has no solution? A. Consistent, independent B. inconsistent, dependent C. consistent, dependent D. inconsistent** 2.) How many solutions does this system have? 2x+y=3 6x=9-3y A. one B. none C. infinite**
-x+2y=-2 x-2y=2 the system has no solution the system has a unique solution: the system has infinitely many solutions. they must satisfy the following equation: y= the answer is the system has infinitely many solutions. i just don't understand how to get
if (x,y) is a solution to the system of equations above and x > 0 what is the value of x? y-x^2 +2 = 9x y = 4x + 4 What is the value of y in the solutions of the system of equations above? 8x-4y =7 5y - 4x = 10
How many solutions does this system of equations have? y = 4x + 3 and 2y - 8x = 3 One, two, infinitely many, or no solutions? My answer is no solutions.
You can ask a new question or browse existing questions.