Thursday, September 12, 2013

-8(4+9x)=7(-2-11x)

First, we'll move the brackets from the right side, to the
left side. For this reason, we'll subtract the product 7(-2-11x) both
sides:


-8(4+9x) - 7(-2-11x) = 7(-2-11x) -
7(-2-11x)


We'll eliminate like terms from the right
side:


-8(4+9x) - 7(-2-11x) =
0


Now, we'll remove the
brackets:


-32 - 72x + 14 + 77x =
0


We'll combine like terms:


5x
- 18 = 0


We'll isolate x to the left side. For this reason,
we'll add 18 both sides:


5x - 18 + 18 =
18


We'll eliminate like
terms:


5x = 18


We'll divide by
15 both sides:


x = 18/5


x =
3.6


The solution of the equation is x =
3.6.

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