To solve the equation \( 1.38 = 1.4c + 0.4 \), follow these steps: 1. Subtract \( 0.4 \) from both sides: \[ 1.38 - 0.4 = 1.4c \] \[ 0.98 = 1.4c \] 2. Now, divide both sides by \( 1.4 \): \[ c = \frac{0.98}{1.4} \] 3. Calculating \( \frac{0.98}{1.4} \): \[ c = 0.7 \] Thus, the solution is: \[ c = 0.7 \]