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Neko [114]
3 years ago
15

Enter the value for x that makes the equation 3x – 5 = 7x - 21 true.

Mathematics
2 answers:
Nitella [24]3 years ago
8 0

Answer:

4

Step-by-step explanation:

3x-5=7x-21

3x-7x=5-21

-4x=-16 ( divide by -4 both sides)

x= 4

AlexFokin [52]3 years ago
8 0
Answer:4


Step by step solution:

3x-5=7x-21
-5=4x-21
16=4x
x=4
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If the output number y is -52 (y=5x-2) what is the input number? SHOW WORK
nordsb [41]

Answer:

the input number is -10

Step-by-step explanation:

output is always y

input is always x

so instead of y, put -52

-52=5x-2  add 2 to each side to ger 5x by itself

-50=5x     divide both sides by 5 to get x by itself

-10=x

x is the input so the input is -10

8 0
3 years ago
Solve for x. x - 2(2 - 3/2 x) = 2(4 - x) + 1
STALIN [3.7K]

Answer:

x = 13/6

Step-by-step explanation:

We are the following expression;

       x - 2(2 - (3/2)*x) = 2(4 - x) + 1

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       x - 4 + 3*x = 8 - 2*x + 1

         4*x + 2*x = 9 + 4

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8 0
3 years ago
Help me with this math problems please only the ones that are circled​
joja [24]
For #1 the answers are
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5 0
3 years ago
The drama club is selling tickets to its play. An adult ticket costs $15 and a student ticket costs $11. The auditorium will sea
spin [16.1K]

Answer:

83 adult tickets and 217 student tickets.

Step-by-step explanation:

Let number of adult tickets sold = x

Given that total number of tickets = 300

So, number of student tickets = 300 - x

Cost of adult ticket = $15

Cost of student ticket = $11

Total collection from adult tickets = $15x

Total collection from student tickets =  (300-x)\times 11 = 3300-11x

Given that overall collection = $3630

15x+(3300-11x) = 3630\\\Rightarrow 15x-11x=3630-3300\\\Rightarrow 4x = 330\\\Rightarrow   x = 82.5

So, for atleast $3630 collection, there should be 83 adult tickets and (300-83 = 217 student tickets.

Now , collection = $3632

4 0
3 years ago
Evaluate -1(5)(2)(-4)
wariber [46]

Answer:

40

Step-by-step explanation:

-1 × 5 = -5

-5 × 2 = -10

-10 × -4 = 40

6 0
3 years ago
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