Simplify: (3x+8)/5 > 2x + 1
- Multiply both sides by 5: 3x + 8 > 10 x + 5
- Move 3x to RHS by subtracting 3x from both sides: 8 > 7x + 5
- Move 5 to LHS by subtracting 5 from both sides: 3 > 7x
- Make the coefficient of x equal 1 by dividing both sides by 7: 3/7 > x
- Therefore, x<3/7
OD
Related Maths A Level answers
All answers ▸For sketching the graph of the modulus of f(x) (in graph transformations), why do we reflect in the x-axis anything that is below it?
Write (3 + 2√5)/(7 + 3√5) in the form a + b√5
Express the following as a partial fraction: (4x^2+12x+9) / (x^2+3x+2) .
Show that (x-2) is a factor of 3x^3 -8x^2 +3x+2