SOLUTION: 3[7 - (7x - 4)] + 6x = 0 I completely forgot how to do problems like this. I know you start with the innermost (), but i don't know how to combine 7-(7x-4)

Question 150801: 3[7 - (7x - 4)] + 6x = 0
I completely forgot how to do problems like this. I know you start with the innermost (), but i don't know how to combine 7-(7x-4)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given equation.

Distribute

Multiply 3 and 7 to get 21

Distribute.

Combine like terms on the left side.

Subtract from both sides.

Combine like terms on the right side.

Divide both sides by to isolate .

Reduce.

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

Answer:

So the answer is

Which approximates to

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