## anonymous one year ago Select an equivalent form of this equation:

1. anonymous

|dw:1433348984572:dw|

2. anonymous

WILL MEDAL

3. anonymous

x - 7 = 3x x - 74 = 12x x - 84 = 3x Those are my choices

4. anonymous

@Michele_Laino @Projects or any 1 else /.\ plz

5. Michele_Laino

what is the least common multiple between 12 and 4?

6. anonymous

3

7. Michele_Laino

no, it is 12

8. anonymous

o ok sorry /.\ i thought wrong

9. Michele_Laino

so we have to multiply both sides by 12, and after that we get: $x - 7 \times 12 = 3x$

10. Michele_Laino

or: $x - 84 = 3x$

11. anonymous

so it would be the last one ? /.\

12. Michele_Laino

no, it is the third one

13. anonymous

ok thank you and do you have time for a couple more???

14. Michele_Laino

ok!