Answer :
First, open the parentheses (make sure you distribute the '-':
6x - 3x - 4 = x - 40
3x - 4 = x - 40
2x = -36
x = -18
The solution set is {-18}
6x - 3x - 4 = x - 40
3x - 4 = x - 40
2x = -36
x = -18
The solution set is {-18}
Answer:
x = 22
Step-by-step explanation:
6x - (3x + 4) = x - 40
6x - 3x - 4 = x - 40 <distribute the negative
3x - 4 = x - 40 <combine like terms
-x -x <subtract x from both sides
2x - 4 = 40
+4 +4 <add 4 to both sides
2x = 44 <divide both sides by 2
x = 22