queenxmeg queenxmeg

25-05-2014
Mathematics

contestada

how do you work out the value of "d" in the equation: 7d=4d+21?

Respuesta :

25-05-2014

Subtract 4d from each side. / / / 3d = 21. / / / Divide each side by 3. / / / d = 7 .

Answer Link

katiebear17 katiebear17

25-05-2014

I'm not completely positive but I believe this is how you do it.

7d=4d+21

7d - 4d = 21

3d = 21

3d / 3 = 21 / 3

d = 7

Answer Link

Otras preguntas

Is it true that a line with slope 1 always passes through the origin? Explain your reasoning.

(x/3)+5=2x-70 solve for x what are the steps

Which is the best estimate of x based on rounding the constants and coefficients in the equation to the nearest integer? 6.15(x – 8.86) = 21.83 A. 12.8 B.

What is the slope of a line perpendicular to the line whose equation is 5x – 2y = 11? A. -11/2 B. -5/2 C. -2/5 D. 5/2 I Just Need Help With This One Question,

good thesis statement on rumors any suggestions pls thank you

Which question is not a helpful one to ask yourself when preparing for peer pressure?A. Are there any friends who can help me stick to my decision?B. How can I

Which statements about the African slave trade of the 1500s are accurate? Choose all answers that are correct. A. The Portuguese continued the trans-Saharan tra

what does probability have to do with heredity?

In recent years, the number of ___________ has increased significantly. large families rural families single-parent families two-parent families

which part of speech is not appropriate in formal writing, but often used in daily conversation.?