26-05-2017
Mathematics

contestada

what is the value of -4k+2(5k-6)= -3k - 39

Respuesta :

26-05-2017

-4k+2 (5k-6)=-3k-39
-4k+10k-12=-3k-39
6k-12=-3k-39
+3k both sides
9k-12=-39
+12 both sides
9k=-27
÷9 both sides
k=-3

check

-4 (-3)+2 (5 (-3)-6)=-3 (-3)-39
12+2 (-15+-6)=9-39
12+2 (-21)=9-39
12-42=-30
-30=-30
k=-3 holds true

Answer Link

Otras preguntas

A school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district debate. What is the probability that

Which quadrilateral has the given property? Two pairs of adjacent sides are congruent. However, none of the opposite sides are congruent. a. square c. isoscel

Which of the following is an organization formed in 1948 to promote democracy, economic cooperation, and human rights? a. Organization of American States b. Al

Convert. If necessary, round to the nearest tenth. (Recall: 1.06 qt. ≈ 1 L) 15 L qt. a. 15.9 c. 13.4 b. 159 d. 134

Howard Hughes, Professor Emeritus of Texas Wesleyan College, reportedly attended a record 490 theatrical shows. Write an expression to represent the average num

After hours of serious talk, the two friends reached an agreement. Which words describe the noun agreement in the sentence? abstract, collective, common abstrac

In My Bondage and My Freedom by Frederick Douglass, why does Mrs. Auld follow her husband’s advice to stop teaching Douglass to read? She was afraid of her husb

Which best describes the underlined words in this sentence? The Captree Boat Basin is now open. ---------------------------- A. simple subject B. comp

What is the maximum possible value of 18.6 decimal

Which expressions are equivalent to the one below? Check all that apply. 9^x a. 9 * 9^(x 1) b. (36/4)^x c. 36^x/4 d. 9 * 9 ^(x-1) e. 36^x/4^x f. x^5