53.1k views
5 votes
2x+30=5x+9 Solve for x
O 6
0 -7
O -6
What’s the answer please?

User LHIOUI
by
6.4k points

2 Answers

4 votes


\text {Hey! Let's Solve this Equation!}


\text {\underline {The First Step is to Subtract 2x}}


\text {2x+30-5x=5x+9-5x}


\text {Your New Problem Is: -3x+30=9}


\text {\underline {The Next Step is to Subtract 30}}


\text {3x+30-30=9-30}


\text {Your New Problem Is: -3x=-21}


\text {\underline {The Final Step is to Divide -3}}


\text {-3x/-3=-21/-3}


\text {Your Answer Would Be:}


\fbox {x=7}


\text {Best of Luck!}

User Thomas Mary
by
7.5k points
5 votes

Answer:

7

Explanation:

get the x on the same side.

subtract 2x from both sides

30=3x+9

then get the variables on one side by themselves. subtract 9 from both sides.

21=3x

now divide by 3 on both sides.

there's your answer.

User Liorda
by
7.4k points