Marty's class collected $10.40 in a school-wide penny collection contest. If Tommy's class subtracted $3.40 from the amount they collected, x, and then multiplied the difference by 2, they would have the same amount of money as Marty's class.

Question

Vocaloid · Answer

I'm guessing it's asking to set up an equation and solve for x?

Tommy's class subtracted 3.40 from the amount x ---> translating this to an equation, x - 3.40

multiplied the difference by two ---> we have to multiply the whole expression (x-3.40) by 2 so 2(x-3.40)

they would have the same amount as Marty's class ---> so 2(x-3.40) = 1.40

solve for x