If 3a + 1= \frac { 13} { 3}, what is the value of 3a - 3?

2 Answers
Apr 6, 2018

The value of 3a-3 is 1/3.

Explanation:

To get 3a-3, just subtract 4 from both sides of the equation:

3a+1=13/3

3a+1color(blue)-color(blue)4=13/3color(blue)-color(blue)4

3a-3=13/3color(blue)-color(blue)4

3a-3=13/3color(blue)-color(blue)(12/3)

3a-3=13/3color(blue)-color(blue)(12/3)

3a-3=(13color(blue)-color(blue)12)/3

3a-3=1/3

Hope this helped!

Apr 6, 2018

color(indigo)(=>1/3

Explanation:

3a + 1 = 13/3

3a = 13/3 - 1

3a = (13-3) / 3 = 10/3

Subtracting 3 on both sides,

3a - 3 = 10/3 - 3 = (10-9)/3 = 1/3