138,980 views
44 votes
44 votes
4x+15=6x-5 solve for x

User Andol
by
2.4k points

2 Answers

20 votes
20 votes

Answer:

x=-10

Explanation:

Hi!

  • Subtract 6x from both sides.


\leadsto\boldsymbol{4x+15=6x-5}


\leadsto\boldsymbol{-2x+15=-5}

  • Subtract 15 from both sides.


\leadsto\boldsymbol{-2x=-20}


\leadsto\boldsymbol{x=-10}

Have a nice day! :)

- Creative Daydreamer

User Muthukumar
by
3.3k points
10 votes
10 votes

Answer:

x = 10

Explanation:

Breaking down the equation


4x+15=6x-5\\4x+15-15=6x-5-15\\4x=6x-20\\4x-6x=6x-20-6x\\-2x=-20\\(-2x)/(-2)=(-20)/(-2)

Simplification


(-2x)/(-2)\\=(2x)/(2) ((-x)/(-y) = (x)/(y))\\(2)/(2) = 1 = x\\\\(-20)/(-2)\\=(20)/(2)\\(20)/(2)\\=10

User Sah
by
2.7k points