Answer:
(1/3)k + (1/4)k = 1
k = 12/7
Explanation:
step 1: use the multiplication property of equality
ex: 1/3k + 1/4k = 1
step 2: combine like terms (1/3k + 1/4k)
ex: 7/12k = 1
step 3: multiply each side by 12
ex: 7/12 * 12 = 1 * 12 (7k = 12)
step 4: divide both sides by 7
ex: 7k/7 = 12/7 (k = 12/7)
step 5: input your answer into your original equation to check your answer (k = 12/7)
ex: (1/3)(12/7) + (1/4)(12/7) = 1
4/7 + 3/7 = 1
7/7 = 1
1 = 1 (if this happens where a number equals itself like 1 = 1 then your answer is always true)