Seudónimo Seudónimo

02-02-2016
Mathematics

contestada

Solve 2a + 21 = 8a - 9, step by step

Respuesta :

Аноним Аноним

02-02-2016

2a + 21 = 8a - 9

Combine like terms.

2a + 21 = 8a - 9
-2a -2a

21 = 6a - 9
+9 +9

30 = 6a
6a/6 = 30/6
a = 5

Answer: a = 5

Answer Link

Otras preguntas

HELP ME ASAP!!!!!!!! A cell phone costs $299 and is now on sale for 30% off. 1) The discount is- . 2) The cost after discount is- . 3) The final cost including

Hot engine oil with heat capacity rate of 4440 w/k (product of mass flow rate and specific heat) and an inlet temperature of 150°c flows through a double pipe h

Solve for x. Round to the nearest tenth

Changed the official religion to Christianity, and changed the official language from Latin to Greek.

Brian is ordering T-shirts for the chess team. The team's budget for clothing is at most $60. Each T-shirt costs $12. Brian wants to know the number of T-shirts

Please I really need help Don’t send one answer, blanks, ridiculous answers or links . This is serious please.

Help plz Id rlly appreciate it.

How does making a call differ when using a cell phone public phon box? consider the kinds of user, types of activity and context of use

factors that could make the public resort to violent ways of protesting

Give examples of numbers that you would multiply by 3 to get an answer that is greater than 3, equal to 3, or less than 3