Question 626273
Follow the BODMAS law

Which says first solve:-
B=Brackets
O=Orders or Powers
D=Division
M=Multiplication
A=Addition
S=Subtraction
 
so you should solve Parenthesis first


=1/5 (4j + 2k -6j +3k) 
=1/5 (-2j+5k)
=-2j/5+5k/5
=-2j/5+k
 


Additional Information from Wikipedia
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 In the United States the acronym PEMDAS is common. It stands for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. PEMDAS is often expanded to "Please excuse my dear Aunt Sally" with the first letter of each word creating the acronym PEMDAS. Canada uses BEDMAS and the UK uses BIDMAS or BODMAS. In Canada and other English speaking countries, Parentheses may be called Brackets, or symbols of inclusion and Exponentiation may be called either Indices, Powers or Orders, which have the same precedence as Roots or Radicals. Since multiplication and division are of equal precedence, M and D are often interchanged, leading to such acronyms as BODMAS