# Algebra - solving linear equations w/ substitution

posted by Samantha

The question in the book reads:
"Suppose you try to solve a system of linear equations using substitution and get this result. How many solutions does each system have?"
1)x=-2
2)y=12
3)6=x
4)-8=-8
5)7=y
6)5=3
I understand #3 and #6, but I do not understand how to know how many solutions there are to #1,2,3,or 5.

1. estephany

1)one solution
2)one solution
4)infinite solutions
5)one solution

## Similar Questions

1. ### Algebra II

What is the first step for solving this system by substitution?
2. ### algebra 1

Got a test tomorrow... Say you have a system of equations (linear), that you can solve using substitution, graphing, or elimination. Without solving the equations, can you tell if there is one solution, many solutions, or no solution?
3. ### Linear Equations

Can you please help solve this equation using the substitution method?
4. ### algebra

i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y - 1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations …
5. ### Algebra

Suppose a linear system of equations has 2012 equations and 2013 unknowns. Answer the following questions:  Can the system be inconsistent?
6. ### Algebra

Solve the system of linear equations using the substitution method. 3x + 3y = 0 -6x + 9y = -10
7. ### math

Suppose you try to solve a system of linear equations using substitution and get this result. 1. x=-2 2. y=12 3. 6=x 4. -8=-8 5. 7=y 8. 5=3
8. ### Algebra

Solve this system of linear equations. * Used the substitution method 3x - y = 8 4x - y = -15 ----------------------------------------- WORK y = 3x - 8 4x - (3x - 8 ) = -15 4x - 3x + 8 = -15 x + 8 = -15 x = -7 3x - y = 8 3(-7) - y …
9. ### Algebra

Find the number of the solutions to each system. a. 4x-y+1=0 4x-y+3=0 b. 2x-y+4=0 4x-2y+8=0 Write a question that can be solved using a system of linear equations. Solve the following system of equations by graphing: y=x+3 and y=-2x-3
10. ### Algebra SOLVING LINEAR EQUATIONS AND INEQUALITIES

Please help Im am Grade 5 and my teacher is letting me do this. 1. Solve the solution by using elimination and substitution 3/x - 2/y = 14 6/x + 3/y = 7 2. Solve by eliminating x (this is solving 3 linear equations) then substitute …

More Similar Questions