Solve the system of equations. {−3+6y=6x2y−14=4x

1 answer

To solve the system of equations:

  1. \(-3 + 6y = 6x\)

  2. \(2y - 14 = 4x\)

Let's start rearranging each equation to a more standard form.

From equation (1):

\[ 6y = 6x + 3 \] \[ y = x + \frac{1}{2} \quad \text{(divide by 6)} \]

From equation (2):

\[ 2y = 4x + 14 \] \[ y = 2x + 7 \quad \text{(divide by 2)} \]

Now we have a system of two expressions for \(y\):

  1. \(y = x + \frac{1}{2}\)

  2. \(y = 2x + 7\)

We can set the two expressions for \(y\) equal to each other:

\[ x + \frac{1}{2} = 2x + 7 \]

Now, solve for \(x\):

  1. Subtract \(x\) from both sides:

\[ \frac{1}{2} = x + 7 \]

  1. Subtract 7 from both sides:

\[ \frac{1}{2} - 7 = x \]

  1. Convert 7 to a fraction:

\[ \frac{1}{2} - \frac{14}{2} = x \]

This simplifies to:

\[ x = -\frac{13}{2} \]

Now that we have \(x\), we can find \(y\) by substituting \(x\) back into one of the equations. We'll use the first equation:

\[ y = x + \frac{1}{2} \]

Substituting in \(x = -\frac{13}{2}\):

\[ y = -\frac{13}{2} + \frac{1}{2} = -\frac{13}{2} + \frac{1}{2} = -\frac{12}{2} = -6 \]

Thus, the solution to the system of equations is:

\[ \boxed{\left(-\frac{13}{2}, -6\right)} \]