Question

http://alphaplustesting.org/TestQuestions/maths-questions/st-maths7-ex1.2-q7.png

HELP!!

Answer 1

I think It is D

Answer 2

why do you think its D ?
explain :=)

Answer 3

That is the way I Interperate it

Answer 4

did you solve for x or did you apply substitution method ?

Answer 5

I worked backwards

Answer 6

I did \[-45+9 \] and then i did\[-6\times6\]

Answer 7

to check ur answer substitute x for 6\[-6(6)-9=-45\]
if both sides are equal then yes 6 is the answer
if both sides are not equal then no

Answer 8

first step is right add 9 both sides
but why did you multiply by 6?

Answer 9

Both times I got 36 so I assumed if I added 9 to \[-6\times6\] i would get -45

Answer 10

alright first step add 9 both sides
now divide both sides by -