Question

How do you do 4x+9=2x-6

Answer 1

x = -7.5 :)

Explanation:

4x + 9 = 2x - 6

-2x -2x

----------------------

2x + 9 = -6

-9 -9

-----------------------

2x = -15

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2 2

x = -7.5

Answer 2

`x = (-15)/(2)`

Explanation:

to answer these types of questions, we want to isolate the variable to one side of the equation

`4x + 9 = 2x - 6\\4x - 2x = -6 - 9\\2x = -15\\x = (-15)/(2)`