183k views
1 vote
3x+7=5x-21

Find the value of x

Someone help me find a easy way to solve a linear equation?

User Peterr
by
7.5k points

2 Answers

0 votes
3x + 7=5x-21
28=2x. Add 21 to both sides and subtract 3x on both sides
X=14 divide both sides by 2
User Igor Kondrasovas
by
8.2k points
1 vote
just get only one of the placeholder on one side by itself
and do the same thing to both sides so it stays equal
3x+7=5x-21
add 21 to both sides
3x+28=5x
subtract 3x from obht sides
28=2x
sivide both sides by 2
14=x
User Hendrathings
by
8.4k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories