Solve for x FSP19611001241.jpgFSZ

Francisca Rodden 2021-12-18 Answered
Solve for x
image

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more

Solve your problem for the price of one coffee

  • Available 24/7
  • Math expert for every subject
  • Pay only if we can solve it
Ask Question

Expert Answer

Maricela Alarcon
Answered 2021-12-19 Author has 4848 answers
Step 1
We have to use analytical geometry property here.
By analytic Geometry
\(\displaystyle\Rightarrow{9}{\left({9}+{12}\right)}={7}{\left({7}+{x}\right)}\)
\(\displaystyle\Rightarrow{189}={49}+{7}{x}\)
\(\displaystyle\Rightarrow{140}={7}{x}\)
\(\displaystyle{x}={\frac{{{140}}}{{{7}}}}={20}\)
Answer: \(\displaystyle={20}\)
Not exactly what you’re looking for?
Ask My Question
0
 
trisanualb6
Answered 2021-12-20 Author has 3662 answers
Step 1
Factor out x on the left side.
\(\displaystyle{\left({c}-{b}\right)}{x}={a}\)
Divide \(\displaystyle{c}-{b}\) to both sides
\(\displaystyle{\frac{{{\left({c}-{b}\right)}{x}}}{{{c}-{b}}}}={\frac{{{a}}}{{{c}-{b}}}}\)
\(\displaystyle{x}={\frac{{{a}}}{{{c}-{b}}}}\)
0
nick1337
Answered 2021-12-28 Author has 9467 answers

Step 1
Given equation:
\(9(9+12)=7(7+x)\)
Rewrite the equation as:
\(7(7+x)=9(9+12)\)
Simplify.
Add 9 and 12
\(7(7+x)=9\times21\)
Multiply 9 by 21
\(7(7+x)=189\)
Divide each term in
\(7(7+x)=189\)
by 7 and simplify
\(\frac{7(7+x)}{7}=\frac{189}{7}\)
Simplify the left side.
Cancel the common factor.
\(\frac{{7}(7+x)}{{7}}\frac{189}{7}\)
Divide 7+x by 1
\(7+x=\frac{189}{7}\)
Simplify the right side.
Divide 189 by 7

7+x=27
Move all terms not containing x to the right side of the equation.
Subtract 7 from both sides of the equation.
x=27-7
Subtract 7 from 27
x=20

0

Expert Community at Your Service

  • Live experts 24/7
  • Questions are typically answered in as fast as 30 minutes
  • Personalized clear answers
Learn more
...