What is the solution to this equation?2х- 5+ 3x = 35

Mathematics

2 answers:

defon3 years ago

6 0

I want to honestly dieee

Elena L [17]3 years ago

4 0

Answer:

Step-by-step explanation:

3x +2x - 5 = 35 to rearrange makes it easier

then, add 3x and 2x which gives you 5x - 5 = 35

then using addition property of equality (APOE) add 5 to both sides which then cancels out the 5 on the left side of the equation and then add 5 to the right side which makes it 40. Then your equation looks like 5x = 40. then using division property of equality, divide by 5 on both sides and 40/5= 8!

You might be interested in

How do you solve this equation: -2m+3=|15+m|

Elden [556K]

Any number inside the modulus sign becomes positive. This means $|15+m|=|-(15+m)|=|-15-m|$ and so we have,

$-2m+3=|15+m| \Rightarrow \left \Big\{ {{-2m+3=15+m} \atop{-2m+3=-15-m}} \right$

Solving these gives us

$-2m+3=15+m \Rightarrow m=-4$

$-2m+3=-15-m \Rightarrow = m=18$

However if we check the second solution in the original equation we obtain $-2(18)+3=|15+18| \Rightarrow -33=33$ . This is false and so $m=18$ can't be a solution.

Therefore the only solution is $m=-4$ .

(Note: I'm not sure why the second solution didn't work but when there's a modulus sign involved it always pays to check your final answers to be sure. I'll have a think about it but in case you find out before I do, I'd be interested to know in the comments.)

8 0

3 years ago

When x = 2, y = 50 and when x = 4, y = 100. Which direct variation equation can be used to model this function?

Karolina [17]

Well, let's first write these as points.

( 2 , 50 )

( 4 , 100 )

We can see that when "x" is reduced by 2, "y" is reduced by 50. This means that if we reduce "x" by 1, "y" will be reduced by 25. Thus, we can say that if "x" is 1, "y" will be 25.

( 1 , 25 )

What we know that 25 * 1 = 25, and that 2 * 25 = 50. We can see that multiplying "x" by 25 will give us our "y". We can now write this as an equation.

y = 25x

3 0

4 years ago

please I really need help this is being timed please I need to do is find the volume of the composite figures please I really

ivann1987 [24]

Answer:

Multiply all of the numbers together

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

11t - 6t = 45 solve the equation and enter the value of t below

Arada [10]