Move the constant to the right
5k=7-6
calculate
5k=1
solution: k=1/5 or k=0.2
Center c and a scale factor of 2
Remember you can do anything to an eqautoin as long as you do oit to both sides
-5x=15
try to get 1x by itself
remember
(ax)/a=x when a=a
so
-5x=15
get x
divide both sides by -5
remember to flip sign
(-5x)/(-5)=15/(-5)
x=-3
answer is first one
x=-3
