Question

15=-3(2c+3d)
solve for c​

Answer 1

Answer:c=(-15-9d)/6

Explanation:

15=-3(2c+3d)

Open brackets

15=-6c-9d

Add 9d to both sides

15+9d=-6c-9d+9d

15+9d=-6c

Divide both sides by -6

(15+9d)/-6=-6c/-6

-(15+9d)/6=c

c=-(15+9d)/6

c=(-15-9d)/6