To solve for s, we want s to stand alone.

So, in the equation

we want s to stand alone.  Right now, s is being multiplied by 8.  So, we need to move the 8.  To move it, we need to cancel it out.  To cancel out multiplication, we need to divide by 8.

If 

To solve for x, we want x to stand alone.

So, in the equation

we want to move the 6.  To move it, we need to cancel it out.  Right now, the x is being multiplied by 6.  So, to cancel it out, we need to divide by 6.  If we divide by 6 on the left side of the equal sign, we need to divide by 6 on the right side of the equal sign. So,

To solve for x, we want x to stand alone. So, in the equation

we want to move the 8.  To move it, we need to cancel it out.  Right now, x is being multiplied by 8.  So, if we want to cancel it out, we need to divide by 8.

If we divide by 8 on the left side of the equal sign, we need to divide by 8 on the right side of the equal sign. So,

To solve for z, we want z to stand alone. So, in the equation

we want to move the 6.  To move it, we need to cancel it out.  Right now, z is being divided by 6.  So, to cancel it out, we need to multiply by 6.  

If we multiply by 6 on the left side of the equal sign, we need to multiply by 6 on the right side of the equal sign.  So,

To solve for h, we want h to stand alone.  So, in the equation

we need to move the 7.  To move it, we need to cancel it.  We can see that h is being divided by 7.  So, to cancel it, we need to multiply by 7.

If we multiply by 7 on the left side of the equal sign, we need to multiply by 7 on the right side of the equal sign.  So, we get

To solve for b, we want b to stand alone.  So, in the equation

we need to move the 6.  To move it, we need to cancel it.  Right now, b is being multiplied by the 6.  So, to cancel, we need to divide.

If we divide by 6 on the left side of the equal sign, we need to divide by 6 on the right side of the equal sign.  So, we get

To solve for a, we want a to stand alone.  So, in the problem

we need to move the 4.  To move it, we need to cancel it.  Right now, a is being divided by 4.  So, to cancel it, we need to multiply.

If we multiply by 4 on the left side of the equal sign, we need to multiply by 4 on the right side of the equal sign.  So, we get

To solve for x, we want x to stand alone.  In the equation

we need to move the 9.  To move it, we need to cancel it.  We can see x is being divided by 9.  To cancel division, we need to multiply.

If we multiply by 9 on the left side of the equal sign, we need to multiply by 9 on the right side of the equal sign.  So,

To solve for y, we want y to stand alone.  So, in the equation

we want to move the 9.  To move it, we need to cancel it.  Right now, y is being multiplied by 9.  To cancel multiplication, we need to divide.  

If we divide by 9 on the left side of the equal sign, we need to divide by 9 on the right side of the equal sign.  So, we get

To solve for k, we want k to stand alone.  So, in the equation

we want to move the 7.  To move it, we need to cancel it.  Right now, k is being multiplied by 7.  To cancel multiplication, we need to divide.  

If we divide by 7 on the left side of the equal sign, we need to divide by 7 on the right side of the equal sign.  So, we get