Solve the system of equations.

–x+6y=13

4x–10y=–10

1 answer

To solve the system of equations:

  1. \(-x + 6y = 13\)
  2. \(4x - 10y = -10\)

We can use the substitution or elimination method. Here, I will use the substitution method for clarity.

First, let's solve the first equation for \(x\):

\[ -x + 6y = 13 \implies -x = 13 - 6y \implies x = 6y - 13 \]

Now, we will substitute \(x\) into the second equation:

\[ 4(6y - 13) - 10y = -10 \]

Expanding the equation:

\[ 24y - 52 - 10y = -10 \]

Combining like terms:

\[ 24y - 10y - 52 = -10 \implies 14y - 52 = -10 \]

Now, add 52 to both sides:

\[ 14y = -10 + 52 \implies 14y = 42 \]

Dividing both sides by 14:

\[ y = \frac{42}{14} = 3 \]

Now that we have \(y\), we substitute it back into our expression for \(x\):

\[ x = 6y - 13 = 6(3) - 13 = 18 - 13 = 5 \]

Thus, the solution to the system of equations is:

\[ (x, y) = (5, 3) \]

To confirm, we can substitute \(x\) and \(y\) back into the original equations:

  1. \(-5 + 6(3) = -5 + 18 = 13\) (True)
  2. \(4(5) - 10(3) = 20 - 30 = -10\) (True)

Both equations are satisfied, therefore the solution is correct:

\[ \boxed{(5, 3)} \]