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77julia77 [94]
3 years ago
11

What is 7x-4=-2x+1+9x-5

Mathematics
1 answer:
Volgvan3 years ago
8 0
I assume you want to find x

remember, you can do anything to an equation as  long as  you do it to both sides


7x-4=-2x+1+9x-5
group like terms
7x-4=-2x+9x+1-5
add like terms
7x-4=7x-4
add 4 to both sides
7x=7x
divide both sides by 7
x=x
true

x=all real numbers

since it sipmlifies to x=x (it could somiplify to 0=0 as well), it is an identity and all real numbers work for x
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Answer:

Step-by-step explanation:

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We will determine the points through which the lines pass through on the graphs.

Looking at the line on the right hand side of the graph, the slope is

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y2= 0, y1 = 4

x2 = 3, x1=0

Slope, m = (0-4)/3-0

Slope = -4/3

Recall the equation of a straight line is y = mx + c

Where c is the intercept.

So the equation is y

y = -4x/3 + 4

Looking at the line on the left hand side of the graph, the slope is

(y2-y1)/x(2-x1) where

y2= 0, y1 = 2

x2 = -1, x1 =0

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Applying equation of a straight line is y = mx + c

The equation

y = 2x + 2

So the equations are

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You put $10,000 into some sort of savings account that gave 0.04 interest rate. You leave it there to be compounded each year for 12 years. And now you have 16010 dollars instead of 10k. Not bad at all if you're patient. :)
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Sveta_85 [38]

Answer: The equation of the line x + 3y = 9 can be written in the slope intercept form y = mx + c as . The slope of this line is . As the product of the slope of perpendicular lines is equal to -1, the slope of a line perpendicular to x + 3y = 9 is 3.

Step-by-step explanation:

ok im super sorry if this doesn't help I'm not partially skilled when it comes to this type of stuff and if it doesn't even relate to the question sorry qwq I really hoped it help and if it didnt just tell me and i can delete it

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