How do you solve 9x - 6= 8( x - 1) + 1?

1 Answer
Jul 2, 2018

x=-1

Explanation:

Using the "D rule":
Given a,b,c where a(b+c)=ab+ac

You may write:

8(x-1)+1=8x+8(-1)+1=8x-8+1=8x-7

Therefore:

9x-6=8(x-1)+1=8x-7
=> x=-1