How To Solve A Simple Equation - I
|Education : Maths|
Let's say you are given the simple equation:
2x + 6 = 12
How do you solve it?
One method is trial and error: replace the value of 'x' until you find one that works.
This is foolproof, but the problem is it may take you a while to find the right number and waste time in an exam.
Here the answer is 3:
2 x 3 + 6 = 12 : yes, that's correct
Questions about gcse mathematics:If A+B+C=13 and C+D+E=13 and E+F+G=13 and G+H+I=13 what is the value of E?...
- Thu, May 12th 2011