All categories

3 years ago

Solve for x: 5(x-2)+7=65-4(5x-8) SHOW STEPS PLZZZZZZ HELP

Mathematics

2 answers:

miskamm [114]3 years ago

6 0

5(x-2)+7=65-4(5x-8)

We move all terms to the left:

5(x-2)+7-(65-4(5x-8))=0

We multiply parentheses

5x-(65-4(5x-8))-10+7=0

We calculate terms in parentheses: -(65-4(5x-8)), so:

65-4(5x-8)

determiningTheFunctionDomain

-4(5x-8)+65

We multiply parentheses

-20x+32+65

We add all the numbers together, and all the variables

-20x+97

Back to the equation:

-(-20x+97)

We add all the numbers together, and all the variables

5x-(-20x+97)-3=0

We get rid of parentheses

5x+20x-97-3=0

We add all the numbers together, and all the variables

25x-100=0

We move all terms containing x to the left, all other terms to the right

25x=100

x=100/25

x=4

NemiM [27]3 years ago

4 0

Answer:

x=4

Step-by-step explanation:

1) Expand each side: 5x-10+7=65-20x+32

2) Move x to one side: 25x-10+7=65+32

3) Move everything else to other side: 25x= 65+32+10-7

4) Simplify: 25x=100

5) Solve for x by dividing both sides by 25: x=4

You might be interested in

It takes a printer 2 1/2 min to print 24 black-and-white pages and 4 color pages. It takes the same printer 3 1/4 min to print 3

Paul [167]

Multiply the first equation by 1.5, to get:
$(1.5)(24b + 4c) = 1.5(2.5)$
$36b + 6c = 3.75$
Subtract the second equation from this:
$6b = 1/2$
$b = 1/12$
Substituting into the first equation:
$24b + 4c = 2.5$
$24*(1/12) + 4c = 2.5$
$2 + 4c = 2.5$
$4c = 0.5$
$c = 1/8$
Therefore, it takes 1/12 minute to print a black-and-white page, and 1/8 minute to print a colored page.

4 0

3 years ago

Read 2 more answers

look everyone, im sorry if i get questions incorrect i really love math, go on call me a nerd. yes i am one. im also the kid tha

vesna_86 [32]

Answer:

heyyy its alright we all make mistakes , the most important thing is that you tried, and learned so you can help others and yourself in the future :D all efforts are appreciated

Step-by-step explanation:

i'm introverted so online school is epic for me

6 0

2 years ago

Read 2 more answers

A lighthouse is located on a small island 5 km away from the nearest point P on a straight shoreline and its light makes seven r

Vaselesa [24]

Answer:

Light is moving at the speed = 77.78 km/min

Step-by-step explanation:

Given:

Distance between island and point P = 5 km