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3 years ago

Solve for x: |4x + 12| = 16

Mathematics

2 answers:

alina1380 [7]3 years ago

8 0

4x + 12 = 16
(4x1) +12 = 16

X = 1

frosja888 [35]3 years ago

3 0

|4x + 12| = 16
As it is in modulus function, it could be either +ve or -ve
4x+12 = 16 OR 4x - 12 = 16
4x = 16-12 OR 4x = 16 + 12
4x = 4 OR 4x = 28
x = 4/4 OR x = 28/4
x = 1 OR x = 7

In short, Your Answer would be either 1 or 7

Hope this helps!

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2 years ago

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2 years ago

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Alona [7]

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Children ticket cost $30 and adult ticket costs $40.

Step-by-step explanation:

Given that:

x = price of a child ticket

y = price of an adult ticket

According to given statement;

3x+2y=170 Eqn 1

4x+6y=360 Eqn 2

Multiplying Eqn 1 by 3

3(3x+2y=170)

9x+6y=510 Eqn 3

Subtracting Eqn 2 from Eqn 3

(9x+6y)-(4x+6y)=510-360

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Dividing both sides by 5

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Dividing both sides by 2

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Hence,

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2 years ago