98.6k views
2 votes
What is 7x-21=x+3
need step by step

1 Answer

2 votes

Answer:


\boxed {x = 4}

Explanation:

Solve for the value of
x:


7x - 21 = x + 3

-Take
x and subtract it from
7x:


7x - 21 - x = x - x + 3


6x - 21 = 3

-Add both sides
21:


6x - 21 + 21 = 3 + 21


6x = 24

-Divide both sides by
6:


(6x)/(6) = (24)/(6)


\boxed {x = 4}

Thus, the value of
x is
4.

User Fluffeh
by
5.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.