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2 years ago

Given the equation 5x - 7 = 18. What is

Mathematics

2 answers:

NISA [10]2 years ago

4 0

Answer:

The answer is adding 7 to both sides.

Step-by-step explanation:

5x-7=18

+7 +7

5x= 25

x=5

Vitek1552 [10]2 years ago

4 0

Answer:

Answer: Adding 7 to both sides.

Step-by-step explanation:

You always do the "inverse" of the number without the variable next to it and either "add" or "subtract" it to the other side.

Ex: 7x - 3 = 18

In this case, you would add the 3 to the other side.

7x - 3 = 18

+ 3 +3

7x = 21

7x 7x

x = 3

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A university is building a new student center that is two- thirds the distance from the arts center to the residential complex.

Natasha2012 [34]

Answer:

$C = (\frac{21}{5},\frac{33}{5})$

Step-by-step explanation:

Given

Points: (1, 9) and (9, 3)

Ratio = 2/3

Required

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$Ratio = 2:3$

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$C = (\frac{mx_2 + nx_1}{n + m},\frac{my_2 + ny_1}{n + m})$

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2 years ago

Algebra

vladimir2022 [97]

(2x + 3y = 12) x (-2)
(4x - 3y = 6) x 1

-4x - 6y = -24
4x - 3y = 6

You can cancel out the x values by adding the two equations together.
(-4x + 4x) + (-6y - 3y) = (-24 + 6)
-9y = -18
y = 2

Solve for x now...
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4x - 6 = 6
4x = 12
x = 3

Check... (x = 3, y = 2)
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12 = 12 <- this works!

4(3) - 3(2) = 6
12 - 6 = 6
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