Arithmetic spaces and linear equations

601. Find the linear combination 3a ₁ + 5a ₂ − a ₃ of the vectors a 1   =   ( 4 , 1 , 3 − 2 ) , a 2 =   ( 1 , 2 , − 3 , 2 ) , a 3 = ( 16 , 9 , 1 , − 3 ) . https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780203756454/84bc859e-388a-4821-81f7-7fb447dc7024/content/eq95.tif"/>