Answer: (4, -3)
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Work Shown
We'll be using these vector properties
- Rule 1: (a,b) + (c,d) = (a+c, b+d)
- Rule 2: k*(a,b) = (k*a, k*b)
To get the following
-2u + v = -2*(-1, 5) + (2,7)
-2u + v = (-2*(-1), -2*5) + (2,7) .... apply rule 2
-2u + v = (2, -10) + (2, 7)
-2u + v = (2+2, -10+7) .... use rule 1
-2u + v = (4, -3)
