Question

12. Solve for x. (6x-21) P Q T S R​

Answer 1

(6x-21)
6x-21=0
6x=21
Divide both side by 6 to leave x alone,
x=3.5

Answer 2

x=4

Explanation:

since its a square, the diagonals cut the right angle in half, so 45

6x - 21 = 45

6x = 24

x=4