First, add the two coordinate points together:

(25, 2: (-5+3, 6+2)) * 7, 2:(-3, 6)

This simplifies to:

(25, 2:(-2, 8)) * 7, 2:(-3, 6)

Next, multiply the x-coordinate by the scalar 7:

(257, 2:(-2, 8)) 7, 2:(-3, 6)

This simplifies to:

(175, 2:(-2, 8)) * 7, 2:(-3, 6)

The final result is:

(175, 2:(-14, 56)) * 7, 2:(-3, 6)