Evaluate the following expression when x = 2 and y = 4×+6-y
*
3
19
8
16
11
When x = 2 and y = 4×+6-y,
y = 4(2) + 6 - y
y = 8 + 6 - y
2y = 14
Therefore, y = 7.
Now, we can substitute y = 7 into the original expression:
x + y
= 2 + 7
= 9
Therefore, the evaluated expression is:
9
To evaluate the given expression, substitute the values of x and y into the expression and perform the necessary calculations.
Let's substitute x = 2 and y = 4x + 6 - y into the expression:
Expression = *
= 3
Therefore, the value of the expression when x = 2 and y = 4x + 6 - y is 3.
To evaluate the expression when x = 2 and y = (4×+6-y), we substitute the given values into the expression.
First, let's simplify the expression (4×+6-y):
4× + 6 - y = 4(2) + 6 - (4(2) + 6)
= 8 + 6 - (8 + 6)
= 8 + 6 - 8 - 6
= 14 - 14
= 0
Now, we can evaluate the expression * 3 using the simplified result:
0 * 3 = 0
Therefore, the value of the expression when x = 2 and y = 4×+6-y is 0.
these r the options:19
8
16
11
Apologies for the confusion. Let's re-evaluate the expression.
Given:
x = 2
y = 4x + 6 - y
Substituting the value of x into the expression for y:
y = 4(2) + 6 - y
y = 8 + 6 - y
2y = 14
y = 7
Now we substitute the values of x = 2 and y = 7 into the expression:
Expression = *
= 2 + 7
= 9
Therefore, the value of the expression when x = 2 and y = 4x + 6 - y is 9.
Evaluate the following expression: 5c-2k when c = 6 and k = 2
*
7
26
15
34
To evaluate the expression 5c - 2k when c = 6 and k = 2, we substitute the given values into the expression:
5c - 2k = 5(6) - 2(2)
= 30 - 4
= 26
Therefore, the value of the expression 5c - 2k when c = 6 and k = 2 is 26.