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astraxan [27]
3 years ago
13

What is the first step in solving the equation 9m - 2 = 16? Add 2 to each side. Subtract 2 from each side. Divide each side by 9

. Multiply each side by 9.
Mathematics
2 answers:
Butoxors [25]3 years ago
6 0

Answer:

Add 2 to each side

NikAS [45]3 years ago
3 0
Add 2 on both sides so you would get 9m=18. Then divide by 9 on both sides to get m by itself so it would be m=2
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Replace a with the length of the given leg and c with the length of the hypotenuse and solve for b:

7^2 + b^2 = 25^2

Simplify"

49 + b^2 = 625

Subtract 49 from each side:

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8 0
4 years ago
The product of (4z^2 + 7z - 8) and (-z + 3) is -4z^3 + xz^2 + yz - 24. What is the value of x? What is the value of y?
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Answer:

x=5+\frac{29}{z}-\frac{y}{z}

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Step-by-step explanation:

Given: (4z^2+7z-8)(-z+3)=-4z^3+xz^2+yz-24; find x and y.

Let's start with finding x first. Let's distribute the left side of the equation.

-4z^3+5z^2+29z-24=-4z^3+xz^2+yz-24

Let's move everything we can to the left side of the equation. Some things will cancel out.

5z^2+29z=xz^2+yz

Now, let's move the term that includes x to the left side of the equation. Everything else should be moved to the right.

-xz^2=-5z^2-29z+yz

Let's get rid of the negative sign in front of x by dividing both sides by -1.

xz^2=5z^2+29z-yz

To get x completely isolated, divide both sides by z^2.

\frac{xz^2}{z^2}=\frac{5z^2}{z^2}+\frac{29z}{z^2}-\frac{yz}{z^2}

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x=5+\frac{29}{z}-\frac{y}{z}

Let's solve for y. We will start with the distributed and simplified equation to make it easier.

5z^2+29z=xz^2+yz

Now, let's move the term that includes y to the left side of the equation. Everything else should be moved to the right.

-yz=-5z^2-29z+xz^2

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yz=5z^2+29z-xz^2

To isolate y, divide both sides by z.

\frac{yz}{z}=\frac{5z^2}{z}+\frac{29z}{z}-\frac{xz^2}{z}

Simplify.

y=5z+29-xz

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