Simplify (79.4,58.1)+3(-0.8,6.3)

$(79.4, 58.1) + 3 (- 0.8, 6.3)$

Multiply $3$ by $- 0.8$ .

$(79.4, 58.1) + 3 (- 2.4, 6.3)$

Multiply $3$ by $6.3$ .

$(79.4, 58.1) + 3 (- 2.4, 18.9)$

Combine each component of the vectors.

$(79.4 - 2.4, 58.1 + 18.9)$

Subtract $2.4$ from $79.4$ .

$(77, 58.1 + 18.9)$

Add $58.1$ and $18.9$ .

$(77, 77)$