B+c/d=a subtract b from both sides

c/d=a-b multiply both sides by d

c=d(a-b) or if you prefer

c=ad-bd

Note: if you meant a=(b+c)/d, multiply both sides by d

b+c=ad subtract b from both sides

c=ad-b

4 0

3 years ago

Find the sum of the geometric series 6Σ3i i=2

topjm [15]

$\sum_{3}^{6}2=\sum_{0}^{3}2=2+2+2=\boxed{6}$

Or did you mean:

$6\times\sum{3i}=6\times\sum{6}=6\times6=\boxed{36}$

6 0

3 years ago

How do i solve this problem

VMariaS [17]

The sum of the interior angles of a quadrilateral -(4 sided shape)
its 360 degrees

add up all the angles, set it equal to 360 degrees, solve for x

any questions

6 0

3 years ago