Math  /  Algebra

Question49. Write an expression for "three timesa number a number minus four."
Student First 7.1

Studdy Solution

STEP 1

1. The problem is asking for a verbal expression to be translated into a mathematical expression.
2. The phrase "a number" typically refers to an unknown variable, which we can denote as x x .
3. The phrase "three times a number" translates to 3x 3x .
4. The phrase "minus four" indicates subtraction of 4 from the previous expression.

STEP 2

1. Identify and assign a variable to "a number".
2. Translate "three times a number" into a mathematical expression.
3. Translate "minus four" and combine it with the previous expression.

STEP 3

Identify "a number" and assign a variable to it. Let x x be the unknown number.

STEP 4

Translate "three times a number" into a mathematical expression. This becomes 3x 3x .

STEP 5

Translate "minus four" and combine it with the previous expression. Thus, "three times a number minus four" becomes 3x4 3x - 4 .
Solution: The expression for "three times a number minus four" is 3x4 3x - 4 .

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