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