The value of x for which the expressions 15−7x and 15x+7 become equal is ________.
- A−4/11
- B11/4
- C−11/4
- D4/11
Solution & Step-by-step Explanation
To find the value of x for which the expressions are equal, set them equal to each other:
15−7x=15x+7
Move all terms involving x to one side and constant terms to the other side:
15−7=15x+7x
8=22x
Solving for x:
x=
22
8
=
11
4
15−7x=15x+7
Move all terms involving x to one side and constant terms to the other side:
15−7=15x+7x
8=22x
Solving for x:
x=
22
8
=
11
4