Answer: D. Quadratic
Step-by-step explanation:
Answer:
x=9
Step-by-step explanation:
y=3x+18=5x
thus 3x+18=5x
subtract 3x from both sides 18=2x
simplify for x x=9
Answer:
the 2nd one
Step-by-step explanation:
2*3x is 6x
2*4 is 8
equation is 6x+8
Let x = Barbie's number
1/3 x -20 = 72
1/3 x = 92
x = 92*3=276