Make a the subject of a+3=(2a+7)/r
Times both side by r to get ar+3r=2a+7 Subtract 2a and 3r from both side to bring a to one side, ar-2a=7-3r Factorise the left handside, a(r-2)=7-3r Divide both side by r-2, a=(7-3r)/(r-2)
AH
Related Maths GCSE answers
All answers ▸A cone has a radius of 2 units and a height of 3 units. Devise a simplified equation to find the volume of the cone.
A curve has the equation y = 4x^2 + 5x + 3 and a line has the equation y = x + 2. Show that the line and the curve have one point of intersection.
Perimeter of isoceles triangle is 24cm. Sides 'x' = x + 3, side 'y' = x + 2, calculate the area
135 is 3/8 of a number. Work out the number.