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Cristina's age is equal to three time her age in three years time minus three time her age three years ago How old is Cristina?
Use a convenient variable, such as "x", for her age. Then, 3 years ago her age was x-3, in three years, her age will be x+3. Write an equation with this data:
x = 3(x+3) - 3(x-3)
And solve it:
x = 3x + 9 - 3x + 9
x = 18
Use a convenient variable, such as "x", for her age. Then, 3 years ago her age was x-3, in three years, her age will be x+3. Write an equation with this data:
x = 3(x+3) - 3(x-3)
And solve it:
x = 3x + 9 - 3x + 9
x = 18
Use a convenient variable, such as "x", for her age. Then, 3 years ago her age was x-3, in three years, her age will be x+3. Write an equation with this data:
x = 3(x+3) - 3(x-3)
And solve it:
x = 3x + 9 - 3x + 9
x = 18
Use a convenient variable, such as "x", for her age. Then, 3 years ago her age was x-3, in three years, her age will be x+3. Write an equation with this data:
x = 3(x+3) - 3(x-3)
And solve it:
x = 3x + 9 - 3x + 9
x = 18
What else can I help you with?
What is three x minus three x equal?
Anything minus itself is zero.
How do you do minus nine divided by 3?
(-9) / 3 = -3 . Minus nine divided by three is equal to minus three
What is 3 times negative 2 minus three?
Three times negative 2 minus three is equal to -9
What is the answer to three minus three times six plus two?
Three minus three times six plus two is equal to -13.
What is positive five minus 2 plus three?
Positive five minus 2 plus three is equal to six.
What is three plus three minus 7?
Three plus three minus 7 is equal to -1
What is three x minus three x equal?
Anything minus itself is zero.
Two hundred minus three x is equal to nine?
two hundred minus three times a number is equal to nine
How do you do minus nine divided by 3?
(-9) / 3 = -3 . Minus nine divided by three is equal to minus three
What is 3 times negative 2 minus three?
Three times negative 2 minus three is equal to -9
What is the answer to three minus three times six plus two?
Three minus three times six plus two is equal to -13.
What does three score minus sixteen equal?
44
What is positive five minus 2 plus three?
Positive five minus 2 plus three is equal to six.
What does seven minus three and three fifths equal?
3 and 2/5
What is three quarts minus one pint equal to?
It's equal to 5 pints.
What is 2 plus 2 minus 1 equal?
Three
What does 4 minus 3 equal?
Four minus three equals one. (Or, 4 - 3 = 1.)
