Question

Q=c+d divided by 2 for d

Answer 1

\[q=\frac{c+d}{2}\\\text{solve for d}\\?\]

Answer 2

yes

Answer 3

multiply both sides by 2 and what do we have?

Answer 4

2q = 2c+2d ?

Answer 5

\[q=\frac{c+d}{2}\\\text{multiply both sides by 2}\\2*q=2*\frac{c+d}{2}\\\text{the 2's cancel on the right hand}\\2*q=\cancel{2}*\frac{c+d}{\cancel{2}}\\2q=c+d\]

Answer 6

make sense so far?

Answer 7

yes . do i need to get anything by itself?

Answer 8

now subtract c from both sides and tell me what you have

Answer 9

2q=d

Answer 10

you only subtracted it from the Right Hand Side, you need to do it on both sides

Answer 11

2q-c=d

Answer 12

correct

Answer 13

thank you so much ! ^_^

Answer 14

np