Question

How do you solve `3( 2x + 3x + 2) = - 4x + 124`?

Answer 1

`x = 118/19`

Explanation:

First, expand by multiplying `3` by every term in the brackets. Then group together the terms with `x` in them and group the terms without `x`s in them together.

Finally, divide the number in front of the `x` by the number on the other side to solve for `x`.

`3 (2x + 3x + 2) = -4x + 124`

`3*2x + 3*3x + 3*2 = -4x + 124`

`6x + 9x + 6 = -4x + 124`

`15x + 6 = -4x + 124`

`15x + 4x = 124 - 6`

`19x = 118`

`x = 118/19 = 6.21`