If f (x) = x - 2 and g (x) = - 2x + 7, what value of x makes f (x) = g (x) ?

Question

Mathematics

Allison Horne

19 May, 02:18

If f (x) = x - 2 and g (x) = - 2x + 7, what value of x makes f (x) = g (x) ?

+2

Answers (1)

Know the Answer?

Stone · Answer 1

Answer: The value of 3 for x will make f (x) = g (x)

Step-by-step explanation:

Make them equal each other and solve for x.

x-2 = - 2x + 7 Add 2x to both sides

+2x + 2x

3x - 2 = 7

+2 + 2

3x = 9

x = 3

Check.

F (3) = 3-2

f (3) = 1

g (3) = - 2 (3) + 7

g (3) = - 6 + 7

g (3) = 1