Which equation has the solution x = 3? a. 3x + 1 =9 b. x/3 + 5 = 6 c. 5x - 7= 1 d. 9 - 3x = 0 e. 2x + 4 = 10 f. 9/x - 1 = 4

D.

Equation: 9 - 3x = 0

Subtract 9 from both sides

9 - 3x - 9 = 0 - 9

Simplify

-3x = -9

Divide both sides by -3

-3x / -3  =  -9 / -3

-3x / -3

Apply the fraction rule: -a / -b  =  a / b

= 3x / 3

Divide the numbers: 3 / 3 = 1

= x

Note: x has the same value as 1

Divide the numbers:  -9 / -3 = 3

x = 3

you need to show the graph

step-by-step explanation:

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: