How do you solve the volume formula R = 8k + d, for d ?

1 Answer
Jun 11, 2018

Answer:

#" "#
#d=R-8K#

Explanation:

#" "#
We are given the formula : #color(red)(R=8k+d#

We are asked to make #color(red)(d)# as the subject.

Consider #R=8k+d#

Subtract #color(blue)(d# from both sides of the equation.

#color(red)(R-color(blue)(d)=8k+d-color(blue)(d)#

#color(red)(R-color(blue)(d)=8k+cancel d-color(blue)(cancel d)#

#R-d=8k#

Subtract #color(blue)(R# from both sides of the equation.

#R-d-color(blue)(R)=8k-color(blue)(R#

#cancel R-d-color(blue)(cancel R)=8k-color(blue)(R#

#-d=8k-R#

Multiply both sides of the equation by #color(blue)((-1)#

#color(blue)((-1)-d=(-1)[8k-R]#

#d=-8k+R#

#or#

#d=R-8K#

This is our required answer.