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EleoNora [17]
3 years ago
13

Solve the problem below where X=4 3X+7=

Mathematics
2 answers:
Ksivusya [100]3 years ago
6 0

X = 4×3 X + 7

Resultado

X = 12 X + 7

Forma alternativa

-11 X - 7 = 0

X = -7/11

Fudgin [204]3 years ago
6 0
Answer: 19

Explanation: 3 x 4 + 7 = 19
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Find the value of y that makes each equation true for all values of x x+5+11x=12x+y
Readme [11.4K]
Ok, let's simplify the left side first by adding the x's together
We get:
12x+5=12x+y
So if we subtract 12x from each side, it cancels it out on both sides, leaving us with 5=y or y=5

If we plug that back into the original we simplified of 12x+5=12x+y, we would have: 12x+5=12x+5, which is true.  :D
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4 years ago
Se patea una pelota con una fuerza de 1,2 N, y adquiere una aceleración de 3 m/s2, ¿Cuál es la masa de la pelota?
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Step-by-step explanation:

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8 0
3 years ago
Solve the equation for x.
aliina [53]

Answer:

X is equal to 7

Step-by-step explanation:

Open parenthesis.

3/4x +63/4=21/2

take common denominator

3/4x=42/4-63/4

Solve

3/4x=-21/4

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7 0
3 years ago
There are 12 inches in 1 foot and 5,280 feet in 1 mile. Elena ran 2 1/2 miles. How many feet did Elena run?
Nitella [24]

Answer:

She Ran 13,300 ft. hope this helps!

Step-by-step explanation:

8 0
3 years ago
What is the value of X to the nearest tenth? <br> Answer options: 0.3, 14.4, 3.4
Nookie1986 [14]

Answer: x=14.4

Step-by-step explanation:

The triangle shown in the figure attache is a right triangle. Therefore, you can calculate the missing side "x" as following:

tan\alpha=opposite/adjacent

Where:

\alpha=64\°\\opposite=x\\adjacent=7

When you solve for x and substitute the values shown above, you obtain the following result:

x=7*tan(64\°)\\x=14.35

x≈14.4

3 0
3 years ago
Read 2 more answers
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