57.1k views
3 votes
6. Solve for x: 3|x - 7| = 15

Please give steps! ❤️

User Jenniffer
by
8.6k points

2 Answers

6 votes

3 | x - 7 | = 15

Divide both sides by 3

3 | x - 7 | ÷ 3 = 15 ÷ 3

| x - 7 | = 5

_________________________

" Reminder "

| a | = t ===》 a = + t OR a = - t

__________________________

| x - 7 | = 5

x - 7 = 5 ====》 x = 12

OR

x - 7 = - 5 ===》 x = 2

User Nick Kirsten
by
8.5k points
3 votes
Step by step:
3|x-7| = 15

Start by multiplying everything inside of the parentheses by 3 since that’s what’s next to it giving you

3x -21 = 15

Then you must combine like terms so you move the -21 over to the other side leaving you with

3x=36

Then you must divide 3 by both sides since that’s what’s next to the x leaving you with

X=12 as your final answer
User Puppylpg
by
8.0k 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