Answer:
4
Step-by-step explanation:
5x/2 - 1 = 9
add 1 to each side
5x/2 = 10
multiply both sides by 2
5x = 20
divide both sides by 5
x=4
5x-2=18 (multiply 9 with 2=18)
5x=18+2 (move 2 to the other side)
5x=20 (add 18 and 2=20)
X=4 (divide 20 and 5 =4)
