Please help, I'll give a medal!

Joanna’s mom is twice her age plus 2 years. If her mom is 40 years old, which of the following represents Joanna's age, j?
A.

2j + 2 = 40
B.

2 = 40 + j
C.

2j = 4- + 2
D.

40j - 2 = 2

Question

Please help, I'll give a medal!

Joanna’s mom is twice her age plus 2 years. If her mom is 40 years old, which of the following represents Joanna's age, j?
		A. 	

2j + 2 = 40
		B. 	

2 = 40 + j
		C. 	

2j = 4- + 2
		D. 	

40j - 2 = 2

anonymous · Answer

Joanna's mom's age = 2x Joanna's age + 2
Now substitute the mom's age and you will have your equation.

anonymous · Answer

@livingmaybe 
I don't know how???

jchick · Answer

attachment

anonymous · Answer

@XxmathrulezXx What part is not clear, so maybe I can better explain it.

jchick · Answer

hint twice her age plus 2 years = 40

jchick · Answer

Okay this is the last and final hint j equals 19