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kolezko [41]
3 years ago
8

What is 3(x + 4) = x + 2(x+6) Please explain

Mathematics
1 answer:
sladkih [1.3K]3 years ago
5 0

3(x + 4)

Distributive property

= 3(x) +  3(4)

= 2x + 12

x + 2(x+6)

Distributive property

= x + 2(x) + 2(6)

= x + 2x + 12

Combine like terms

= 3x + 12

So

3(x + 4)  = x + 2(x+6) = 3x + 12

Answer: 3x + 12

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Answer:

(2,4) is a solution to this system of equations

Step-by-step explanation:

Given system of equation are

y=2x \hfill (1)

y=\frac{-1}{2}x+5\hfill (2)

To find the solution of the given system of equations

To Check that (2,4) is a solution to this system or not

Solving equations (1) and (2)

From equation (1) and y=2x

Now substitute y=2x is equation (2)

2x=\frac{-1}{2}x+5

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5-\frac{x}{2}-2x=0

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5-\frac{5x}{2}=0

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Substitute x=2 in equation (1)

y=2x

y=2(2)

Therefore y=4

Therefore the solution is (2,4)

Therefore (2,4) is a solution to the system of equations.

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