Make x the subject of the formula: 3(2x-y)=ax-4
Expand the brackets out first6x-3y=ax-4Now, get all the x's on one side6x-ax=3y-4and now factorise the side with the x's as we want to isolate xx(6-a)=3y-4and now divide both sides by (6-a)x=(3y-4)/(6-a)
CR
Related Maths GCSE answers
All answers ▸Find a solution for the following simultaneous equations: 2x+y=5 and 2x-5y=2
I buy a car from a dealership for £3500. The car depreciates in value for every year I own it. What is the value of the car after I have owned it for 18 months if it depreciates at a rate of 5 percent?
If angle x = 63 degrees, work out the remaining angle of this right-angled triangle
1ii) sketch y=x^2-4x-21