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ycow [4]
2 years ago
6

4x + 8 = 2x + 7 + 2x - 20

Mathematics
2 answers:
Savatey [412]2 years ago
8 0
4x+8=2x+7+2x-20
4x+8=4x-13
4x+8-4x=4x-13-4x
8=-13

8 is not equal to -13
Therefore, there is no solution.
tatuchka [14]2 years ago
7 0

First you condense the right side (4x+8=4x-13)

We know this problem has no solution because if you subtract 4x from each side you will get 8=-13 and that is impossible.

Therefore there are no solutions

You might be interested in
Find the value of :[5x+y+z][5x+y+z][5x+y+z]
KIM [24]

Answer:

Step-by-step explanation:

(a + b + c)³ = a³ + b³ + c³ + 3a²b + 3a²c + 3ab² + 3cb² +3 ac² + 3bc² + 6abc

a = 5a  ;  b =y   ; c = z

(5x + y + z)(5z + y + z )(5z + y +z) = (5x + y +z)³

= (5x)³ + y³ +z³ + 3(5x)²y + 3(5x)²z + 3(5x)*y² + 3*z*y² + 3*5x*z² + 3*y*z² + 6*5x*y*z

= 125x³ + y³ +z³ + 3*25x²y + 3*25x²*z + 15xy² + 3zy² + 15xz² + 3yz² + 35xyz

= 125x³ + y³ + z³ + 75x²y + 75x²z + 15xy² + 3zy² + 15xz² + 3yz² + 35xyz

6 0
2 years ago
Please help me if you know answer its okay but if able to could please explain step by step.
Masja [62]

Answer: The answer would be c


Step-by-step explanation:

Step 1: Solve for b

5a+b=7

b=-5a+7

your slope would be -5a

Step 2: Make it perpendicular

The Perpendicular is gonna be the opposite

So it would be b= 1/5+7

The slopes has to be different and you don't have to worry about the "+7"

Reply if you have any questions


8 0
3 years ago
For this set of data,<br> 89, 88, 84, 87, 89, 84, 84, 83, 85, 89, 84<br> Find the standard deviation
Ilia_Sergeevich [38]

Answer: 2.2962419891482

Step-by-step explanation: First get the mean of the numbers or the average

the mean in this case is 86

then subtract each number by the mean of 86

the numbers then become : 3, 2, -2, 1, 3, -2, -2, -3, -1, 3, -2

then square all the numbers to get : 9, 4, 4, 1, 9, 4, -4, 9, 1, 9, 4

then find the mean of those numbers which is 5.2727272727273

then find the square root of this number to find the standard deviation

2.2962419891482 is the standard deviation

hope this helps mark me brainliest if it helped

6 0
3 years ago
Plz help me well mark brainliest if correct....????
12345 [234]

Answer:

C

Step-by-step explanation:

18 boys

5 0
2 years ago
Read 2 more answers
Factorise a x + b x minus A Y minus b y​
shutvik [7]
X(a+b)-y(a+b)
*factor out (a+b)*
=(a+b)(x-y)
8 0
3 years ago
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