0
Use the substitution method to solve the system -x plus y equals 2 and 4x-3y equals -7?
Wiki User
∙ 14y ago
-x + y = 2
4x - 3y = -7
-x + y = 2 (add x to both sides)
y = x + 2 (substitute x + 2 for y into the second equation of the system)
4x - 3y = -7
4x - 3(x + 2) = -7 (solve for x)
4x - 3x - 6 = -7
x - 6 = -7 (add 6 to both sides)
x = -1
y = x + 2 (substitute -1 for x)
y = -1 + 2
y = 1
Thus (-1, 1) is the solution of the given system of the equations.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Solve the equation by substitution method x-y equals 5?
x+y=5
When using the substitution method to solve a nonlinear system of equations you should first see if you can one variable in one of the equations in the system?
isolate
How can you solve a linear equation?
by elimination,substitution or through the matrix method.
How do you solve 2x plus 2y equals 4 and 4x plus y equals 1?
2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.
What is the advantage that the method od substitution has over the graphing method of solving system of equations?
Substitution is a way to solve without graphing, and sometimes there are equations that are impossible or very difficult to graph that are easier to just substitute. Mostly though, it is a way to solve if you have no calculator or cannot use one (for a test or worksheet).
Use the substitution method to solve the system of equations Enter your answer as an ordered pair?
Use the substitution method to solve the system of equations. Enter your answer as an ordered pair.y = 2x + 5 x = 1
Use the substitution method to solve the system of equations Choose the correct ordered pair 2x plus 3y equals 13 x equals 2?
(2,3)
Solve the equation by substitution method x-y equals 5?
x+y=5
When using the substitution method to solve a nonlinear system of equations you should first see if you can one variable in one of the equations in the system?
isolate
How can you solve a linear equation?
by elimination,substitution or through the matrix method.
How do you solve 2x plus 2y equals 4 and 4x plus y equals 1?
2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.
Can quadratic systems be solved using elimination and substitution?
You can solve lineaar quadratic systems by either the elimination or the substitution methods. You can also solve them using the comparison method. Which method works best depends on which method the person solving them is comfortable with.
Use the substitution method to solve the system of equations Choose the correct ordered pair?
2x+7y=29 x=37-8y
What is the advantage that the method od substitution has over the graphing method of solving system of equations?
Substitution is a way to solve without graphing, and sometimes there are equations that are impossible or very difficult to graph that are easier to just substitute. Mostly though, it is a way to solve if you have no calculator or cannot use one (for a test or worksheet).
How would use solve the system of equation x plus 3y equals 23 by using substitution?
You'd need another equation to sub in
What are three ways to solve a system?
elimination, substitution and graphing
How do you solve x plus y equals 4 and y equals 2X plus 1 by substitution method?
If: x+y = 4 and y = 2x+1 Then: 4-x = 2x+1 => 3 = 3x => 1 = x So by substitution: x = 1 and y = 3
