14x = -7y + 21 write in standard form.

14x + 7y = 21 is your answer.

Step-by-step explanation:

Standard form is Ax + By = C

Isolate the constant. Note the equal sign, what you do to one side, you do to the other. Add 7y to both sides.

14x = -7y + 21

14x (+7y) = -7y (+7y) + 21

14x + 7y = 21

14x + 7y = 21 is your answer.

~

14x+7y =  21

Step-by-step explanation:

The standard form of a line is Ax+By =C

14x = -7y + 21

We need to add 7y to each side

14x+7y = -7y+7y + 21

14x+7y =  21

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.

i think the correct option is the second option.