Evaluate the expression when x=2 . -3x+1.5+2.5x-4.5+8x

12

Step-by-step explanation:

For this problem, all you have to do is plug in x=2 into all the x you see.

-3(2)+1.5+2.5(2)-4.5+8(2)

-6+1.5+5-4.5+16=12

Replace the variable x = 2 in the expression.

−3⋅2+1.5+2.5(2)−4.5+8(2)

Simplify each term.

multiply −3 by 2 .

−6+1.5+2.5(2)−4.5+8(2)

Multiply 2.5 by 2.

Multiply 8 by 2.

−6+1.5+5−4.5+16

Simplify by adding and subtracting.

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Add −6 and 1.5

−4.5+5−4.5+16

Add −4.5 and 5.

0.5−4.5+16

Subtract 4.5 from 0.5.

−4+16

Add −4 and 16.

= 12

Step-by-step explanation:

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