SOLUTION: in question Question 19498: I got lost in this step how did you go from x-4*(2x-4)=-7 to x-8x-7=-7?

Algebra.Com
Question 23855: in question
Question 19498:
I got lost in this step
how did you go from x-4*(2x-4)=-7 to x-8x-7=-7?

Answer by ilana(307)   (Show Source): You can put this solution on YOUR website!
Good point, this solution is incorrect.
It should say x-4*(2x-4)=-7 goes to x-8x+16=-7, so -7x=-23, so x=23/7. We then use this value of x to solve for y.

RELATED QUESTIONS

Question : Nico invests some money at 9% and $1,400 less than that amount of 8%. The... (answered by MathLover1)
What is the answer to this question? Determine which expression is equivalent to... (answered by MathLover1,Theo)
how do you solve for x in this equation. i got it down to 7 square root equals 21.... (answered by Alan3354)
What is the average (arithmetic mean) of x, x+3, x-4, and x+7 ? How do I go about... (answered by rothauserc)
So my question is how I would solve this proportion: 2x/4=5x+6/3 I also wanted to... (answered by Boreal)
Hi there, I am confronted with the following question: "Solve the inequality and... (answered by longjonsilver)
Question: 4 (y-1) + 3 = 2y - 7 What I have done so far: 4y + 3 = 2y - 7 <-----the (answered by checkley71)
y=x2+4x+3 Graph using Quadratic Equation. I have a calculator but I really don't know... (answered by rfer)
x+y=12 x-7=4 how do u go about solving a question like... (answered by jim_thompson5910)