SmarterEd

Aussie Maths & Science Teachers: Save your time with SmarterEd

  • Login
  • Get Help
  • About

Algebraic Techniques, SM-Bank 038

Evaluate the expression \(-2x+7y\)  when  \(x=1\)  and  \(y=-2\).  (2 marks)

Show Answers Only

\(-16\)

Show Worked Solution
\(-2x+7y\) \(=-2\times 1+7\times -2\)
  \(=-2-14\)
  \(=-16\)

Filed Under: Substitution Tagged With: num-title-ct-core, smc-4695-10-Substitution

Copyright © 2014–2025 SmarterEd.com.au · Log in