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3 years ago

11

Solve the equation and enter the value of x below. 6(x + 18) = 9x x = _____

1 answer:

chubhunter [2.5K]3 years ago

8 0

Answer:

6(x + 18) = 9x x = __36__

Step-by-step explanation:

We have the following equation

$6(x + 18) = 9x$

To solve the equation follow the next steps

1. Apply the distributive property

$6x + 6*18 = 9x$

$6x + 108 = 9x$

2. Subtract 6x on both sides of the equation

$6x -6x +108 = 9x-6x$

$108 = 3x$

$3x= 108$

3. Divide both sides of the equation by 3

$\frac{3}{3}x= \frac{108}{3}$

$x= 36$

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Bryan and Jadyn had barbeque potato chips and soda at a football party. Bryan ate 3 oz of chips and drank 2 cups of soda for a t

Diano4ka-milaya [45]

Answer:

200 mg sodium is in 1 oz of chips and 50 mg sodium is in 1 cup of soda.

Step-by-step explanation:

Let x mg sodium is in 1 oz of chips and and y mg is in 1 cup of soda.

∵ Bryan ate 3 oz of chips and drank 2 cups of soda for a total of 700 mg of sodium.

i.e. 3x + 2y = 700 --------(1),

Jadyn ate 1 oz of chips and drank 3 cups of soda for a total of 350 mg of sodium.

i.e. x + 3y = 350 ---------(2),

Equation (1) - 3 × equation (2),

We get,

2y - 9y = 700 - 1050

-7y = -350

$\implies y = \frac{-350}{-7}= 50$

From equation (1),

3x + 2(50) = 700

3x + 100 = 700

3x = 700 - 100

3x = 600

$\implies x = \frac{600}{3}=200$

Hence, 200 mg sodium is in 1 oz of chips and 50 mg sodium is in 1 cup of soda.

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allochka39001 [22]

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Help me solve this equation 3x-7=4x

Sauron [17]

Hey!

Let's write it, $3x-7=4x$
Add $7$ to both sides,
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Since we don't want a negative variable, we have to divide both sides by $-1$ .
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Lostsunrise [7]

Answer:

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