Home
/
Math
/
Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution. x+3y=-7 -x-3y=7 Answer No Solutions Infinitely Many Solutions One Solution

Question

Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution. x+3y=-7 -x-3y=7 Answer No Solutions Infinitely Many Solutions One Solution

Determine if the following system of equations has no solutions, infinitely many solutions or
exactly one solution.
x+3y=-7
-x-3y=7
Answer
No Solutions
Infinitely Many Solutions
One Solution

Solution

expert verifiedExpert Verified
4.3(346 Voting)
avatar
YorkElite · Tutor for 8 years

Answer

### Infinitely Many Solutions

Explain

## Step 1: Identify the equations<br />### The given system of equations is:<br />\[ x + 3y = -7 \]<br />\[ -x - 3y = 7 \]<br /><br />## Step 2: Add the equations<br />### Adding the two equations to eliminate $x$:<br />\[ (x + 3y) + (-x - 3y) = -7 + 7 \]<br />\[ 0 = 0 \]<br /><br />## Step 3: Analyze the result<br />### The result $0 = 0$ indicates that the two equations are dependent and represent the same line.<br /><br />## Step 4: Determine the number of solutions<br />### Since the equations represent the same line, there are infinitely many solutions.
Click to rate: