All categories

2 years ago

What is 2x+3+8x=3x+9x+7

Mathematics

1 answer:

Reika [66]2 years ago

3 0

Answer:

x=-2

Step-by-step explanation:

Hey there!

In order to solve this equation, you need to combine like terms

The equation after combining the x terms and the contants will look like this

10x+3=12x+7

Now you have to take 10x away from both sides

3=2x+7

Now bring all the constants to the left side

3-7=2x

Simplify

-4=2x

divide 2 on both sides to get x by itself

x=-2

So, the answer is x=-2

You might be interested in

Find the amount of sap the maple syrup producer would have collected from each tree if the total amount (5 gallons) was redistri

zhuklara [117]

Answer:

Step-by-step explanation:

You cannot solve the problem be cause you dont know how many trees there are.

3 0

3 years ago

Write the equation of the line in slope intercept form that given f(- 3) = 5 and f(3)=-3,

Fantom [35]

Step-by-step explanation:

the first coordinate is (-3 5),

x+3y -12 the second coordinate is (3, 3)

y= -1/3x +4

7 0

2 years ago

I NEED HELP WITH NUMBER 6 AND 7! I WILL MARK YOU AS BRAINLIEST IF YOU ANSWER CORRECTLY! PLZ AND TY! :D

Shtirlitz [24]

Answer/Step-by-step explanation:

6. To know who cycled faster between Sam and Bobby, find the constant of proportionality of both of them. The person with the least value of constant of proportionality is the fastest.

Constant of proportionality for Sam = $\frac{distance (y)}{time (x)} = \frac{20}{2} = 10 mph$

Constant of proportionality for Bobby:

Use (0, 0) and (2, 18) to find the constant of proportionality, which is:

$m = \frac{y_2 - y_1}{x_2 - x_1} = \frac{18 - 0}{2 - 0} = \frac{18}{2} = 9 mph$ .

Bobby's unit rate/constant of proportionality is smaller than Sam's.

So, Bobby cycled faster.

7. y = 15x is given as representing the amount of Pauli's Pizzeria Pizza.

15 in the equation is the slope/constant of proportionality, which represents the cost of a unit of pizza.

From the graph, the unit rate/constant of proportionality of Leo's Pizzeria Pizza can be calculated as, y/x.

Using (2, 24), we have 24/2 = 12

This means Leo's Pizzeria cost $12 per pizza.

Therefore:

Pauli's Pizzeria takes in $15 per pizza

Leo's Pizzeria takes in $12 per pizza

Pauli's Pizzeria takes in more money per pizza.

8 0

2 years ago

Use the graph of the polynomial function to find the factored form of the related polynomial. Assume it has no constant factor

Step2247 [10]

Answer:

Step-by-step explanation:

The factored from of a polynomial can be found from the zeros or x-intercepts of the graph.

The x-intercepts here are x= 1 and x= 7.

Then the factors are x-1 and x-7.

So the factored form is (x-1)(x-7).

6 0

3 years ago

PLEASE HELP!!!!!!!!!!!

Sever21 [200]

Answer: 270 ft

Step-by-step explanation:

If the depths increase by 30 for every 1 atmosphere of pressure, and the sub starts at 0 ft with 30 atmosphere of pressure, then to find the answer, add 30 to the depth starting with 30 at an atmosphere of 2. With 3 atmosphere, the depth is 90. Hopefully I explained it right and got the correct answer. If not, I tried my best.

6 0

3 years ago