Which of the following descriptions are equivalent ways to write this problem?
Shania will spend 6.5x dollars on each of the eight gift bags, for a total of 52x dollars.
Shania will spend a total of 20x dollars on nail polish and a total of 32 dollars on manicure kits.
Shania will spend 2.5 dollars each on x nail polishes for eight gift bags and 4 dollars each on eight manicure kits.
Shania will spend x dollars each on 20 nail polishes and 4 dollars each on eight manicure kits.
Answer:
B.
Step-by-step explanation:
Answer:
Subtract from both sides of the equation the term you don't want
Step-by-step explanation:
In solving equations, you generally want to "undo" operations that are done to the variable. Addition is "undone" by adding the opposite (that is, subtracting the amount that was added). Multiplication is "undone" by division.
If you have variables on both sides of the equation, pick one of the variable terms and subtract it from both sides of the equation.
Example
2x = x +1
If we choose to subtract x, then we will have a variable term on the left and a constant term on the right:
2x -x = x -x +1 . . . . . . . x is subtracted from both sides
x = 1 . . . . . . simplify
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Note that we purposely set up this example so that removing the variable term from the right side caused the variable term and constant term to be on opposite sides of the equal sign. It may not always be that way. As long as you remember that an unwanted term can be removed by subtracting it (from both sides of the equation), you can deal with constant terms and variable terms no matter where they appear.
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Additional Comment
It usually works well to choose the variable term with the smallest (or most negative) coefficient. That way, when you subtract it, you will be left with a variable term that has a positive coefficient.
Answer:
6y -8
Step-by-step explanation:
8y-2(y+4)
Distribute the 2
8y -2y -8
Combine like terms
6y -8
Answer
8y-2(y+4) first we open bracket 8y-2y-2*4
8y-2y-8
6y-8
we take common 2(3y-4) answer