SOLUTION: 7x-8-4x=25

Algebra ->  Linear-equations -> SOLUTION: 7x-8-4x=25      Log On


   



Question 223719: 7x-8-4x=25
Answer by drj(1380) About Me  (Show Source):
You can put this solution on YOUR website!
7x-8-4x=25

Solved by pluggable solver: EXPLAIN simplification of an expression
Your Result:


YOUR ANSWER


  • This is an equation! Solutions: x=11.
  • Graphical form: Equation 7x-8-4x=25 was fully solved.
  • Text form: 7x-8-4x=25 simplifies to 0=0
  • Cartoon (animation) form: simplify_cartoon%28+7x-8-4x=25+%29
    For tutors: simplify_cartoon( 7x-8-4x=25 )
  • If you have a website, here's a link to this solution.

DETAILED EXPLANATION


Look at 7%2Ax-highlight_red%28+8+%29-4%2Ax=25.
Moved -8 to the right of expression
It becomes 7%2Ax-4%2Ax-highlight_green%28+8+%29=25.

Look at highlight_red%28+7%2Ax+%29-highlight_red%28+4%2Ax+%29-8=25.
Eliminated similar terms highlight_red%28+7%2Ax+%29,highlight_red%28+-4%2Ax+%29 replacing them with highlight_green%28+%287-4%29%2Ax+%29
It becomes highlight_green%28+%287-4%29%2Ax+%29-8=25.

Look at %28highlight_red%28+7+%29-highlight_red%28+4+%29%29%2Ax-8=25.
Added fractions or integers together
It becomes %28highlight_green%28+3+%29%29%2Ax-8=25.

Look at highlight_red%28+%28highlight_red%28+3+%29%29%2Ax+%29-8=25.
Remove unneeded parentheses around factor highlight_red%28+3+%29
It becomes highlight_green%28+3+%29%2Ax-8=25.

Look at 3%2Ax-8=highlight_red%28+25+%29.
Moved these terms to the left highlight_green%28+-25+%29
It becomes 3%2Ax-8-highlight_green%28+25+%29=0.

Look at 3%2Ax-highlight_red%28+8+%29-highlight_red%28+25+%29=0.
Added fractions or integers together
It becomes 3%2Ax%2Bhighlight_green%28+-33+%29=0.

Look at 3%2Ax%2Bhighlight_red%28+-33+%29=0.
Removed extra sign in front of -33
It becomes 3%2Ax-highlight_green%28+33+%29=0.

Look at highlight_red%28+3%2Ax-33+%29=0.
Solved linear equation highlight_red%28+3%2Ax-33=0+%29 equivalent to 3*x-33 =0
It becomes highlight_green%28+0+%29=0.
Result: 0=0
This is an equation! Solutions: x=11.

Universal Simplifier and Solver


Done!



I hope the above steps were helpful.

For FREE Step-By-Step videos in Introduction to Algebra, please visit http://www.FreedomUniversity.TV/courses/IntroAlgebra and for Trigonometry visit http://www.FreedomUniversity.TV/courses/Trigonometry.

Good luck in your studies!

Respectfully,
Dr J