Question

If x = 5 and y = 7 , evaluate the following expression: 20 − ( 3 y − 4 x )

Answer 1

Answer:

20-((3×7)_(4×5))

20-(21-20)

20-1

19

Step-by-step explanation:

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Answer 2

Question:-

If x = 5 and y = 7 , evaluate the following expression: 20 − ( 3 y − 4 x )

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x = 5 , y = 7

20 -(3y - 4x)

Substituting x= 5 , y= 7 in 20 -(3y-4x)

= 20- (3×7-4×5)

= 20 - ( 21 - 20)

= 20 - 1

= 19