2|2x-6|=20 How the hell do you do this guys :(

Mathematics

2 answers:

guapka [62]3 years ago

3 0

Its 8
2x -6 =10
2x= 10+6
2x=16
X= 8

tatyana61 [14]3 years ago

3 0

Answer:

x1 = -2, x2 = 8

Step-by-step explanation:

You can first divide both sides of the equation by 2 so now you have:

I 2x - 6 I = 10

Then use the absolute value definiton and rewrite it into two separate equations:

1.) 2x - 6 = -10

2.) 2x - 6 = 10

From here you can solve both equations:

1.) x = -2

2.) x = 8

i hoped this helps

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zvonat [6]

Answer: y= -1

Step-by-step explanation:

2+y=1

y=1-2

y=-1

8 0

3 years ago

Read 2 more answers

Elimination to solve the system of equation<br> x-y=5 and x+y=3

Alik [6]

X = 4 , y = -1
Explanation:
solve by elimination ie eliminate x or y from the equations by performing operations on them.
first label the equations , to follow the process.
x - y = 5 ----------------(1)
x+ y = 3 ----------------(2)
If (1) and (2) are added then y will be eliminated.
(1) + (2) gives : 2x = 8 → x = 4
now substitute this value of x into either of the 2 equations and solve for y.
let x = 4 in (1) : 4 - y = 5 → -y = 1 → y = -1
check in (1) : 4-(-1) = 4+1 = 5
check in(2) : 4 - 1 = 3

3 0

3 years ago

Please help!!

enot [183]

Since g(h(x))=h(g(x))= x, hence functions h and g are inverses of each other

Given the functions expressed as:

$h(x) =\sqrt{2x+2}\\g(x)\frac{x^2-2}{2} \\$