7x-29-21x=3-(12+2x)

step by step instruction
in Algebra 2 Answers by

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

7x-29-21x=3-(12+2x)

7x - 21x - 29 = 3 - 12 + 2x place common terms together

-14x - 29 = -9 + 2x  combine the x terms on the left and the ones terms on the right

-29 = -9 + 2x + 14x  add 14x to both sides

-29 = -9 + 16x

-29 + 9 = 16x add 9 to both sides

-20 = 16x

x = -20/16 = -5/4 or -1.25

by Level 10 User (55.7k points)

Related questions

1 answer
(21x^2+2x-51)÷(7x+10)
asked Apr 28, 2013 in Algebra 1 Answers by anonymous | 534 views
1 answer
square root of 21x divided by square root of 7x
asked May 9, 2013 in Algebra 1 Answers by anonymous | 837 views
1 answer
Solve.12 - 8 (3x -5) > - 7x + 29
asked Dec 22, 2011 in Pre-Algebra Answers by anonymous | 1.0k views
1 answer
12^2=21x-9
asked Dec 11, 2012 in Factors of a number by anonymous | 546 views
1 answer
6(x+12)-21x+3
asked Sep 19, 2012 in Algebra 1 Answers by anonymous | 598 views
1 answer
simplify:(4x+12^2/x+11x+30)/x^3-4x^2-21x/4x^2 + 20x
asked Apr 6, 2011 in Algebra 1 Answers by anonymous | 938 views
2 answers
2x^2+21x+54
asked Apr 26, 2013 in Algebra 2 Answers by anonymous | 797 views
1 answer
21x^2(2x-3)+41x(2x-3)+10(2x-3)
asked Mar 24, 2012 in Algebra 2 Answers by anonymous | 870 views
1 answer
Solve the system by elimination method. 7x - 9y = 29 7x + 2y = -15
asked Oct 29, 2020 in Algebra 1 Answers by anonymous | 1.4k views
1 answer
Solve the equation... 5+7x=29+3x
asked Mar 18, 2013 in Algebra 1 Answers by anonymous | 763 views
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!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,545 questions
99,733 answers
2,417 comments
486,016 users