If and , what is the value of ?

Answer and explanation

Correct answer: C. 2

- 10 is the difference given in the problem.
- 14 is the sum .
- 12 is the value of () rather than .
  1. Step 1: Add the two equations to find : .
  2. Step 2: Substitute into to solve for : .
Answer
2.

Practise more Systems of linear equations.

Free questions with an explanation for every one, and full timed ACT mock tests.