Hi There!
Evaluate 4x - 3y + (7x - 7y) when x = 6 and y = -1.
Remember to follow P.E.M.D.A.S
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Solution:
= 4(6) - 3(-1) + (7(6) - 7(-1))
= 4(6) - 3(-1) + (42 - (-7))
= 4(6) - 3(-1) + 35
= 24 - (-3) + 35
= 21 + 35
= 56
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Answer: C) 56
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Hope This Helps :)