If , what is the value of ?
Answer and explanation
Correct answer: A. 6
- Step 1: Subtract from both sides to collect variable terms on the left: .
- Step 2: Add to both sides to isolate the variable term: .
- Step 3: Divide both sides by to solve for : .
Answer
.
Why not the others: Subtracting instead of adding gives , while adding gives ().
Practise more Linear equations in one variable.
Free questions with an explanation for every one, and full timed SAT mock tests.