Question

If f(2x+3)=7x-10, g(x)=x+1/2 and ff(x)=g-1(x) find x​

Answer 1

Answer: x=2.6

Explanation:

You only need to solve the first equation to find x

2x + 3 = 7x - 10

Subtract 2x from both sides

3 = 5x - 10

Add 10 to both sides

13 = 5x

Divide 13 and 5x by 5 (13/5=2.6 5x/5=x)

2.6 = x