1st: x = -5y - 5z - 2
2nd: x = 5y/4 - z + 19/4
3rd: x = -5y + z - 20
Not sure if this was correct, but anyways hope this helps! :)
20/7 as a mixed number is 2 6/7
9/4 as a mixed number is 2 1/4
22/5 as a mixed number is 4 2/5
4/3 as a mixed number is 1 1/3
First, get rid of the parenthesis:
5x-4=5x-15+11
5x-4=5x-4
this equation will always be true, so there are infinite number of solutions.
Your answers are? Please give the answers to this question. Then I may help
