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3 years ago

Evaluate the expression -5x+2.5x+4.5-x+3 when x=3

Mathematics

1 answer:

Tamiku [17]3 years ago

6 0

Answer:

Step-by-step explanation:

-5x+2.5x+4.5-x+3= -5x+2.5x-x + 4.5 +3

=-3.5x + 7.5

= -3.5*3+7.5 {x = 3}

= -10.5 + 7.5

= - 3

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