8x-y
evaluate the expression when x=2 and y=-4
2 answers:
Answer:
20
Step-by-step explanation:
We are given the expression with two variables x and y and are asked to evaluate the expression 8x - y. We can complete this task by putting the values of x and y in that expression.
x = 2
y = -4
8x -y
= 8 (2) - (-4) //two negatives become positive
= 16 + 4 = 20
Answer:
Value of expression when x = 2 and y =-4 is 20
Step-by-step explanation:
The given expression be, 8x - y
when x = 2 and y = -4 means that, substituting the value of x and y in the given expression
<u>To find the value of expression</u>
8x - y ------(1)
x = 2 and y = -4
substitute the values of x and y in (1)
8x - y = 8*2 - (-4)
= 16 + 4 = 20
Therefore the value of expression when x= 2 and y = -4 is 20
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Answer:
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Step-by-step explanation:
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