GCEMathematicsVariation and Inequalities2023

Find the range of values of x for which $3x - 5 > x + 7$.

A$x > 6$CORRECT
B$x > 1$
C$x < 6$
D$x > 12$
AI
Toaster Teacher
Why the answer is A, and why the others tempt you.
Solving 3x - 5 > x + 7: subtract x from both sides to get 2x - 5 > 7, then add 5 to get 2x > 12, so x > 6. The other options result from arithmetic errors in collecting like terms.
Want this in Pidgin, Yoruba, Igbo or Hausa? Sign up free →

Practice more Mathematics questions

GCE Mathematics has thousands more questions like this — with Worked answers on every one.