Respuesta :

lucielchoi707
15=7x+1-5x


Put like terms together. ( group anything alike)

15+1=16

7x-5x=2x

16 2x
—- ——-
2x 2x


2x/2x cancels itself out.

16 divided by 2 is 8

x=8

I hope this helped!
SuperLegend

15=7x+1-5x

Subtract 5x from 7x

15=2x+1

Subtract 1 from 15

14=2x

Divide 2 on both sides

Final Answer: x=7