Evaluating three times plus 2Y subtract 2Z when X equals 5Y equals 2NZ equals one
To evaluate the expression, we substitute the given values for X, Y, and Z into the expression.
Given:
X = 5
Y = 2
N = 1
Z = Y
Substituting these values into the expression:
3 times plus 2Y minus 2Z
= 3(5) + 2(2) - 2(Y)
Since Z = Y, we can substitute Z with Y:
= 3(5) + 2(2) - 2(Y)
= 15 + 4 - 2(2)
= 15 + 4 - 4
= 19
Therefore, when X equals 5, Y equals 2, N equals 1, and Z equals Y, the expression evaluates to 19.
To evaluate the expression 3X + 2Y - 2Z when X = 5, Y = 2, and Z = 1, follow these steps:
Step 1: Substitute the given values into the expression.
3(5) + 2(2) - 2(1)
Step 2: Simplify multiplication first.
15 + 4 - 2
Step 3: Simplify addition and subtraction from left to right.
19 - 2
Step 4: Perform subtraction.
17
Therefore, the expression 3X + 2Y - 2Z, when X = 5, Y = 2, and Z = 1, equals 17.
To evaluate the expression "3X + 2Y - 2Z" when X equals 5, Y equals 2, and Z equals 1, you need to substitute the given values into the expression and perform the necessary calculations.
Here's how you can do it step by step:
1. Start with the expression: 3X + 2Y - 2Z
2. Substitute the value of X, which is 5: 3(5) + 2Y - 2Z
3. Simplify the multiplication: 15 + 2Y - 2Z
4. Substitute the value of Y, which is 2: 15 + 2(2) - 2Z
5. Simplify the multiplication: 15 + 4 - 2Z
6. Substitute the value of Z, which is 1: 15 + 4 - 2(1)
7. Simplify the multiplication: 15 + 4 - 2
8. Perform addition and subtraction: 19 - 2
9. Finally, evaluate the expression: 17
Therefore, when X equals 5, Y equals 2, and Z equals 1, the expression "3X + 2Y - 2Z" evaluates to 17.