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Kevin1994 Kevin1994
  • 24-02-2016
  • Mathematics
Answered

In the equation 3a+2(4a-1)=9, what is the value of a?

Verified Answer :

Exvited
Exvited Exvited
  • 24-02-2016

\(3a+2(4a-1)=9 \\ \\ 3a + 8a - 2 = 9 \\ \\ 11a - 2 = 9 \\ \\ 11a = 9 + 2 \\ \\ 11a = 11 \\ \\ a = 1 \\ \\\)

The final result is: a = 1.

Answer Link
Zacharias15
Zacharias15 Zacharias15
  • 24-02-2016

3a+2(4a-1)=9

Step 1: Simplify Equation

Distribute:
3a+(2)(4a)+(2)(-1)=9
3a+8a-2=9
Combine Like Terms:
(3a+8a)+(-2)=9
11a-2=9

Step 2: Add 2 to both sides

11a-2=9
+2 +2
11a = 11
---- ----
11 11
a = 1

Answer Link

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