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Evaluate 5x – 2y + (7x – y) for x = 7 and y = –2. 90 –18 –45 63

Sagot :

The value of the expression 5x – 2y + (7x – y)  when x = 7 and y = -2 is 90

How to evaluate the expression?

The expression is given as:

5x – 2y + (7x – y)

Substitute x = 7 and y = –2 in the above expression

5 * 7 - 2 * -2 + (7 * 7 + 2)

Evaluate the expression

90

Hence, the value of the expression 5x – 2y + (7x – y)  when x = 7 and y = -2 is 90

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