Solve for s 8s+9=7s+6

$8 s + 9 = 7 s + 6$

Move all terms containing $s$ to the left side of the equation.

Subtract $7 s$ from both sides of the equation.

$8 s + 9 - 7 s = 6$

Subtract $7 s$ from $8 s$ .

$s + 9 = 6$

Move all terms not containing $s$ to the right side of the equation.

Subtract $9$ from both sides of the equation.

$s = 6 - 9$

Subtract $9$ from $6$ .

$s = - 3$