Question

Evaluate 3x+8y-(x+5) when x=3 and y=6.
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Answer 1

3x+8y-(x+5) x=3 y=6

plug in x and y and work the problem out and don't forget PEMDAS

3(3)+8(6)-(3+5)

9+48-(8)

57-(8)

drop the parenthesis

57-8 = 49

final answer is 49

Answer 2

49

Explanation:

3(3)+8(6)-(3+5)

pemdas parentheses first

3(3)+8(6)-8

multiply

9+48-8

left to right

57-8

49