Asked by Regina M

Solve the equations.

(a) 2D + 3 = 13

D = _____

(b) 12E - 3 = 0

E = _____
Answered by Ms. Sue
D = 5
E = 1/4
Answered by Linda
(a) 2D = 13 - 3 (subtract 3 from both sides) then 2D = 10 so divide both sides by 2 and you end up with D = 10/2 10 divided by 2 is 5 so D = 5

(b) 12E - 3= 0 add three to both sides and know you have 12E=3 now divide both sides by 12 and you have E=3/12 Three divided by 12 is reduced to 1/4 so E=1/4
Remember to solve for the letter you need to isolate that letter by moving all the numbers to the opposite side of the equation by doing the same to both sides to keep them equal
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