Select the equation that most accurately depicts the word problem.
Mary Lou has 2 more nickels than pennies, and she has 30 coins all together. Use x for the number of pennies.
2(x + 2) = 30
x + (x + 2) = 30
2x + 30 = 5
x + 2 = 30
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So, if may has two more nickles then pennies and assuming that both their values add up to 30 we can begin by 30/2 and because there are two less pennies, and we are solving for the number of pennies (x) we can write this as 30/2-2=x changing the subject of the formula to 30 will give us 2(x+2)=30
Do you have any thoughts on how to approach this problem?