Solve the equation . What is ?
Answer and explanation
Correct answer: C. -6
- Step 1: Move the constant to the right: . Divide by 9: . Answer: -6. Why not the others: -54: forgets to divide by the coefficient. -8: moves the constant with the wrong sign. 6: loses the sign.
Practise more Number, Algebra, Measurement and Data.
Free questions with an explanation for every one, and full timed NAPLAN Year 9 Practice mock tests.