How do you isolate r in 4(x-3)-r+2x=5(3x-7)-9x?

2 Answers
Aug 21, 2016

r=23

Explanation:

4(x-3)-r+2x=5(3x-7)-9x

or

4x-12-r+2x=15x-35-9x

or

6x-12=r+6x-35

or

r-35=-12

or

r=35-12

or

r=23

Aug 21, 2016

r=23

Explanation:

4(x-3)-r+2x=5(3x-7)-9x

hArr4x-12-r+2x=15x-35-9x

hArr6x-12-r=6x-35

or cancel(6x)-12-r=cancel(6x)-35

or -12-r=-35 or

35=12+r or

r=35-12=23