Question

if x=a then which of the following is not always true for an integer k -
a)kx=ak b) x/k=a/k c) x-k=a-k d) x+k=a+k

Answer 1

all are true

Step-by-step explanation:

x  = a

lets multiply both sides by k

=> kx  = ka

=> kx = ak

x  = a

Let divide by k both sides

=> x/k  = a/k

x = a

lets add k both sides

=> x + k = a + k

x = a

let subtract k bith sides

=> x - k  = a - k

so all are true

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Answer 2

Step-by-step explanation:

x=a

let multiple both sides by k

kx=ak

x=a

let divide by k both sides

x/k=ak

x=a

let add. both sides

x+k=a+k

x=a

let subtraction k both sides

x=k=a-k