All categories

3 years ago

Solve: -2+5x-7=3x-9+2x

Mathematics

2 answers:

Alexandra [31]3 years ago

6 0

Bring the equation on the left to the right side. So 3x -9+2x+2x-5x+7= 2x-2

damaskus [11]3 years ago

4 0

Let's solve your equation step-by-step.−2+5x−7=3x−9+2x
Step 1: Simplify both sides of the equation.−2+5x−7=3x−9+2x
Simplify: 5x−9=5x−9
Step 2: Subtract 5x from both sides.5x−9−5x=5x−9−5x−9=−9
Step 3: Add 9 to both sides.−9+9=−9+90=0Answer:All real numbers are solutions.

You might be interested in

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds a

kirill115 [55]

Answer:

12 feet per second.

Step-by-step explanation:

Please consider the complete question.

Ian tosses a bone up in the air for his dog, Spot. The height, h, in feet, that Spot is above the ground at the time t seconds after she jumps for the bone can be represented $h(t)=-16t^2+20t$ .

What is Spot's average rate of ascent, in feet per second, from the time she jumps into the air to the time she catches the bone at t=1/2?

We will use average rate of change formula to solve our given problem.

$\text{Average rate of change}=\frac{f(b)-f(a)}{b-a}$

$\text{Average rate of change}=\frac{h(\frac{1}{2})-h(0)}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot(\frac{1}{2})^2+20\cdot \frac{1}{2}-(-16\cdot(0)^2+20\cdot (0))}{\frac{1}{2}-0}$

$\text{Average rate of change}=\frac{-16\cdot\frac{1}{4}+10-(0)}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{-4+10}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{6}{\frac{1}{2}}$

$\text{Average rate of change}=\frac{2\cdot 6}{1}$

$\text{Average rate of change}=12$

Therefore, Spot's average rate of ascent is 12 feet per second.

3 0

3 years ago

There were 10 cards in a bag labeled 0-9 what is the probability of drawing a 3 and then a 5 if the first card is not replaced b

serg [7]

Answer:

1/9 chance

Step-by-step explanation:

6 0

3 years ago

Simplify the expression 12(8b-5)

Crazy boy [7]

Answer:

96b-60

Step-by-step explanation:

12(8b-5)=

12*8b - 5*12 =

96b-60

4 0

3 years ago

Hurry!!

zavuch27 [327]

For this case what you should see is the behavior of each function to find the correct answer.
We have functions of the type:
f (t) = a * (b) ^ t
Thus,
For I, we have:
f (t) = 30 * (1.05) ^ t
For V we have:
f (t) = 30 * (0.95) ^ t
For VI we have:
f (t) = 30 * (0.85) ^ t
Answer:
option c.

8 0

3 years ago

Read 2 more answers

Which ordered pair is the solution to this system of equations? Use the elimination method.

Amiraneli [1.4K]

Answer:

x=5

y=5

I think sorry if it didn't help ;)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers