Which expression is equivalent to \( (7 a+7)- \) \( (-4 a+6) ? \) \[ a+11 \] \[ 7 a+7+4 a-6 \] \[ 12 a \] \[ (7 a+7)-(6 a-4) \]

Step 1 ：\( (7a+7)-(-4a+6) \)

Step 2 ：\( 7a + 7 + 4a - 6 \)

Step 3 ：\( 11a + 1 \)