Answer:
Step-by-step explanation:
Step One: We need to find a way to equate either the x terms of the y terms in each equation. ...
Step Two: Take equation b) from equation a) to eliminate the x component. ...
Step Three: substitute the value of y into either equation to find the value of x.
Answer
2x-9
Step-by-step explanation:
-4x +4 = -3x + 31
4 - 31 = -3x + 4x
-27 = x
68 is not a prime number. The prime factorization of 68 would be 2 x 2 x 17.