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Adding 3 to three times a number is as the same result as subtracting 30 to five times a numberWhat is the number?
Wiki User
∙ 14y ago
33
Aurelia Rohan
Wiki User
∙ 14y ago3x + 3 = 5x - 30 -3x +3x 3 = 8x - 30 +30 +30 8x = 33 /8 /8 x = 4 1/8
Improved answer:
Let the unknown number be x:
3x+3 = 5x-30
3x-5x = -30-3
-2x = -33
Divide both sides by -2 to find the value of x remembering that a minus number divided into a minus number is equal to a plus.
x = 16.5
Substituting the value of x into the original equation will give you 52.5 = 52.5
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How is Addition And Subtraction Are Related To Each Other?
They are both binary operations. The inverse of adding X to a number is the subtraction of X from the result and, conversely, subtracting Y from a number is the inverse of adding Y to the result.
What is negative 15 minus 12?
-3. Subtracting a negative number yields the same result as adding a positive.
What is the opposite of sum in math?
Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.
What happens when you subtract a negative from a posotive?
Subtracting a negative is like adding a positive; the result will be positive.
All the other digits are the result of subtracting any number from itself?
Alberto
Why does subtracting a number give the same result as adding its opposite?
adding its opposite?
How is Addition And Subtraction Are Related To Each Other?
They are both binary operations. The inverse of adding X to a number is the subtraction of X from the result and, conversely, subtracting Y from a number is the inverse of adding Y to the result.
What is 14 minus 6?
8
What is negative 15 minus 12?
-3. Subtracting a negative number yields the same result as adding a positive.
What is 16 minus negative 12?
28. Subtracting a negative number gives the same result as adding a positive.
What is the opposite of sum in math?
Difference. A sum is the result of adding two numbers, and a difference is the result of subtracting two numbers.
What happens when you subtract a negative from a posotive?
Subtracting a negative is like adding a positive; the result will be positive.
What is -7 x -5 plus -10?
The answer 25. Multiplying two negative numbers results in a positive answer. Adding a negative number to that result is the same as subtracting a positive.
The result of subtracting one number from another?
Their difference.
What do you get when you subtract a positive from a positive?
Depends. If you are subtracting a bigger number from a smaller number, such as 3 - 5, you will get a negative result, -2. If you are subtracting a smaller number from a bigger number, such as 12 - 3 you will get a positive result, 9.
Result obtained when one number is subtracted from another number is called what?
Difference
Why is it that when subtracting an integer gives the same result as adding the opposite?
Because of the definition of addition and subtraction. When looking at a real number line: when you add you move to the left or up, when you add the opposite of a number you move in the opposite direction.
