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3 years ago

-3/5 x = 18 what is x

Mathematics

2 answers:

stira [4]3 years ago

5 0

X = -30
Multiply on both sides
3x=-90
Divide by 3 then get -30

Liono4ka [1.6K]3 years ago

4 0

My guess would be x = -30

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2(n - 1) + 4n = 2(3n - 1)

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2(n - 1) + 4n = 2(3n - 1)
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6n - 2 = 6n - 2 (equal)
6n - 6n = 2 - 2
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whatever value you put into the place of n, you'll get 0 = 0

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3 years ago

Solve the absolute value equation. If no solution write NO SOLUTION. -{2x + 3] + 8 12

Natasha2012 [34]

Answer:

If problem is "-|2x+3|+8=12"

then there is (no solution.)

Step-by-step explanation:

Let's solve your equation step-by-step.

−|2x+3|+8=12

Step 1: Add -8 to both sides.

−|2x+3|+8+−8=12+−8

−|2x+3|=4

Step 2: Divide both sides by -1.

−|2x+3|=4

-1 -1

|2x+3|=−4

Step 3: Solve Absolute Value.

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3 years ago

The senior classes at High School A and High School B planned separate trips to Lake Compounce. The senior class at High School

storchak [24]

Answer:

Number of students in vans =15 and bus =46

Step-by-step explanation:

use variables for the vans and buses

let x= vans and y=buses

Now solve the 2 equations simultaneously

remember to number your equations

6x+7y=412..........1

6x+9y=504.........2

make x the subject of one equation

and label it equation 3

6x=412—7y

$x = \frac{206}{3} - \frac{7y}{6} .............3$

subs 3 into 2

$6( \frac{206}{3} - \frac{7y}{6} ) + 9y = 504$

$412 - 7y + 9y = 504$

$- 7y + 9y = 504 - 412$

$2y = 92$

$y = 46...................4$

subs 4 into 1

$6x + 7(46) = 412$

$6x + 322 = 412$

$6x = 412 - 322$

$6x = 90$

$x = 15$

Therefore there are 15 students in each van and 46 students in each bus.

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2 years ago