If f(x) = 2x+5, g(x) = 8x-7 and f(x)=g(x). Find the value of x. Show your working.
f(x) = g(x), 2x+5=8x-7, 12=6x, 6x=12 therefore, x=2.
Related Maths GCSE answers
All answers ▸How is the quadratic formula used?
Factorise and solve x^2 - 8x + 15 = 0.
A ball, dropped vertically, falls d metres in t seconds. d is directly proportional to the square of t. The ball drops 45 metres in the first 3 seconds. How far does the ball drop in the next 7 seconds?
