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3 years ago

In order to solve the equation, what must you do?

Mathematics

2 answers:

krek1111 [17]3 years ago

4 0

Answer:

You must divide by 3.

Step-by-step explanation:

3x / 3 = x

9 / 3 = 3

Hence x = 3

Drupady [299]3 years ago

4 0

Answer:

divide by 3 on both sides of the equation

Step-by-step explanation:

3x = 9

The variable x is being multiplied by 3. You want x alone, so you must use the opposite operation of multiplication to undo the multiplication by 3. The opposite of multiplication is is division. Since x is being multiplied by 3, you must divide by 3. The rule of equations is that you must do the same operation to both sides of the equation, so you must divide both sides of the equation by 3.

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Of the pizzas recently sold at Pizza Pies, 6 had pepperoni and 26 did not. Considering this data, how many of the next 16 pizzas

kondaur [170]

Answer:

8 pizzas

Step-by-step explanation:

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2 years ago

Read 2 more answers

Y = –3x 6 y = 9 what is the solution to the system of equations? (–21, 9) (9, –21) (–1, 9) (9, –1)

Romashka [77]

we have

<u>The system of equations</u>

$y=-3x+6$ -------> equation $1$

$y=9$ -------> equation $2$

Substitute equation $2$ in equation $1$

$9=-3x+6$

subtract $6$ both sides

$9-6=-3x+6-6$

$3=-3x$

Divide by $-3$ both sides

$x=-1$

the solution is the point $(-1,9)$

therefore

the answer is

the solution to the system of equations is the point $(-1,9)$

4 0

3 years ago

Read 2 more answers

Please help with this algebra question

zhenek [66]

We have
-2x-3y <12
For this case what you should do is to graph the following straight line:
-2x-3y = 12
Then, the solution will be the shaded region that satisfies the following inequality:
-2x-3y <12
In the shaded region you will find all the solution points.
Answer:
See attached image

7 0

3 years ago

Every week, Hector’s 20 hours earns $210.00. He earns a constant amount of money per hour.

lesantik [10]

Answer: 20 weeks in 1 week

in 2 weeks 40

Step-by-step explanation:

This proves that the equation is true

3 0

3 years ago

Which of the following is a solution of x2 + 4x + 25?

blondinia [14]

Solve for x:
x^2 + 4 x + 25 = 0 I ssume that's the notation.
Subtract 25 from both sides:
x^2 + 4 x = -25
Add 4 to both sides:
x^2 + 4 x + 4 = -21
Write the left hand side as a square:
(x + 2)^2 = -21
Take the square root of both sides:
x + 2 = i sqrt(21) or x + 2 = -i sqrt(21)
Subtract 2 from both sides:
x = i sqrt(21) - 2 or x + 2 = -i sqrt(21)
Subtract 2 from both sides:
Answer: x = i sqrt(21) - 2 or x = -i sqrt(21) - 2

5 0

3 years ago