i need help with these bcuz i do know have to do them.
asked Apr 26, 2012 in Word Problem Answers by anonymous

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:

To avoid this verification in future, please log in or register.

1 Answer

3x-9=27...Add 9 to each side of the equation and therefore, that will

leave you with 3x=36.  Then, divide 3 to each side of this equation

and that will leave you with X=12(answer). Replace x with the number 12 and you

will have 3(12)-9=27...36-9=27.


Do the same with 2x+4=44. Subtract 4 from each side of the equation and

therefore, you will have 2x=40. Then divide 2 to each side of this equation

which will leave you with x=20(answer). Replace x with the number 20 and you

will have 2(20)+4=44. Thus, 40+4=44.


4(7x-9)+6=82...Remember P.E.M.D.A.S, Multiply 4 by 7x, this equals 28x. Then multiply 4 by -9=-36. Now, you have 28x-36+6=82. Combine like terms. Which is -36+6=-30. So, 28x-30=82. Add 30 to both sides of the equation. This leaves you with 28x=112. Divide 28 to both sides. X=4(answer). Thus, replace 4 with x.
answered Oct 8, 2012 by missalisa Level 1 User (740 points)
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!
80,497 questions
84,427 answers
67,855 users