We are given two equations: $9a + b = 29$ $4a + b = -14$ We are asked to solve for $a$.

1. Problem Description

We are given two equations:

$9a + b = 29$

$4a + b = -14$

We are asked to solve for $a$.

2. Solution Steps

We are given the equations:

$9a + b = 29$ (Equation 1)

$4a + b = -14$ (Equation 2)

Subtract Equation 2 from Equation 1:

$(9a + b) - (4a + b) = 29 - (-14)$

$9a + b - 4a - b = 29 + 14$

$5a = 43$

Divide by 5:

$a = \frac{43}{5}$

3. Final Answer

$a = \frac{43}{5}$