Solve 7x-4=8+5x
First bring all the x terms to one side by taking 5x from each side, this gives 2x-4=8. Now put all the number terms on the other side by adding 4 to each side, this gives 2x=12. We can now divide both sides by 2 to give x=6.
AM
Related Maths GCSE answers
All answers ▸Solve (6x-2)/4 - (3x+3)/3 = (1-x)/3. (4 marks)
There are 10 boys and 20 girls in a class. The class has a test. The mean mark for all the class is 60. The mean mark for the girls is 54. Work out the mean mark or the boys.
How do you sketch a quadratic graph?
Solve 5x-13 > 3x-7 for x.