Solve the system of two equations using substitution.

y = 2 + 3x
4x - 3y = -16

1 answer

To solve the system of equations using substitution, we'll start by using the first equation to substitute for \(y\) in the second equation.

The equations are:

  1. \(y = 2 + 3x\)
  2. \(4x - 3y = -16\)

Now substitute equation 1 into equation 2:

\[ 4x - 3(2 + 3x) = -16 \]

Now, distribute \(-3\) in the second equation:

\[ 4x - 6 - 9x = -16 \]

Combine like terms:

\[ 4x - 9x - 6 = -16 \] \[ -5x - 6 = -16 \]

Now, add \(6\) to both sides:

\[ -5x = -10 \]

Divide by \(-5\):

\[ x = 2 \]

Now that we have \(x\), we can substitute it back into the first equation to find \(y\):

\[ y = 2 + 3(2) \] \[ y = 2 + 6 = 8 \]

Thus, the solution to the system of equations is:

\[ \boxed{(2, 8)} \]