Question

If possible evaluate q+2r, q=[6, -1] r=[-3, 5]
[-11, 8] [1, 0]

Answer 1

2r + 5 = 19

Reorder the terms:
5 + 2r = 19

Solving
5 + 2r = 19

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + 2r = 19 + -5

Combine like terms: 5 + -5 = 0
0 + 2r = 19 + -5
2r = 19 + -5

Combine like terms: 19 + -5 = 14
2r = 14

Divide each side by '2'.
r = 7

Simplifying
r = 7

Answer 2

does this help