Question

How do you solve `2x+A=B` given `A=((2, -8), (9, 5), (-2, 3))` and `B=((-6,2), (1, -5), (8, 5))`?

Answer 1

`x = ((-4,5), (-4, -5), (6, 1))`

Explanation:

`2x+A=B => 2x + ((2, -8), (9, 5), (-2, 3)) = ((-6,2), (1, -5), (8, 5))`
`:. 2x = ((-6,2), (1, -5), (8, 5)) - ((2, -8), (9, 5), (-2, 3))`
`:. 2x = ((-6-2,2-(-8)), (1-9, -5-5), (8-(-2), 5-3))`
`:. 2x = ((-8,10), (-8, -10), (12, 2))`
`:. x = 1/2((-8,10), (-8, -10), (12, 2))`
`:. x = ((-4,5), (-4, -5), (6, 1))`