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2 years ago

Describe how to solve -5x = 30

Mathematics

2 answers:

Anika [276]2 years ago

8 0

Answer:

x = -6

Step-by-step explanation:

solving for x in this equation, you would only need to divide the -5 on both sides.

-5x=30

divide both the x and 30 by -5:

x=-6

(make sure when dividing a negative by a positive the positive number ends up negative as well) :)

Ivan2 years ago

5 0

-5x divided by -5x to cancel the out the x and then 30 divided by -5, hope this helped!

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2 years ago

Quadrilateral ABCD is plotted with coordinates A(3,7), B(6,1), C(-6,-8) and D(-5,1). Using coordinate geometry, prove that ABCD

tiny-mole [99]

Answer:

Step-by-step explanation:

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1 year ago

Four glasses of milk and 2 snack bars have a total of 72 carbohydrates (carbs), and 2 glasses of milk and 3 snack bars have a t

Travka [436]

One glass of milk has 11 carbs and one snack bar has 14 carbs.

Step-by-step explanation:

Let,

Glass of milk = x

Snack bar = y

According to given statement;

4x+2y=72 Eqn 1

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Multiplying Eqn 2 by 2

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Subtracting Eqn 1 from Eqn 3

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Dividing both sides by 4

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Putting y=14 in Eqn 1

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Dividing both sides by 4

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Keywords: linear equations, subtraction

Learn more about linear equations at:

#LearnwithBrainly

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2 years ago

Write the equation of a line that passes through the points (-2, 3) and (-4, 4) in slope intercept form (y=mx+b).

Yuri [45]

Step-by-step explanation:

first step is to find the gradient of the line which "m" on the equation

gradient formula is y2 - y1 ÷ x2 - x1 = -½ as shown on the picture we substituted those points given

2nd step is to substitute on the equation y=mx+c

m= -½

y= 3 (you can choose any from those given points but in my case I chose point A)

x= -2

c= ? only unknown variable so we can can calculate it

substitute as shown on the picture to get c= 2

therefore our equation of the line will be y= -½x+2

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2 years ago