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2 years ago

3(d-8)-5=9(d+2)+1 need help

Mathematics

1 answer:

nika2105 [10]2 years ago

5 0

Answer:

d=-8

Step-by-step explanation:

1) Use the Distributive property on the left side of the equation:

3d-24-5=9(d+2)+1

2) Use the Distributive property on the right side of the equation:

3d-24-5=9d+18+1

3) Combine alike terms:

3d-29=9d+19

4) add a 29 to both sides:

3d=9d+48

5) Subtract a 9d from both sides:

-6d=48

6) Divide both sides by -6:

d=-8

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2 years ago

The engine torque y (in foot-pounds) of one model of car is given by y=−3.75x2+23.2x+38.8, where x is the speed (in thousands of

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Answer:

Step-by-step explanation:

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2 years ago

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3 years ago

Solve by substitution <br> X^2= 2y + 10<br> 3x-y = 9

Viefleur [7K]

Answer:

$x=-4\\ x=-2\\ y=-21\\ y=-15$

Step-by-step explanation:

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3 years ago

Read 2 more answers