3 years ago

Solve for x: 3(x+1)=5(x-2)+7

Mathematics

1 answer:

mojhsa [17]3 years ago

7 0

Answer:

x = 3

Step-by-step explanation:

3 ( x + 1 ) = 5 ( x- 2 ) + 7

Expand

3 x + 3 = 5 x - 10 + 7

Minus 5 x from both sides

- 2 x + 3 = - 10 + 7

Minus 3 from both sides

- 2 x = - 10 + 4

Simplify

- 2 x = - 6

Divide both sides by - 2

x = 3

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BigorU [14]

[ Answer ]

$\boxed{2.4b \ + \ 4c}$

[ Explanation ]

Simplify: -0.8b + 4.1c - (-3.2b) - 0.1c

-----------------------------------

Apply Rule: - (-a) = a

-0.8b + 4.1c + 3.2b - 0.1c

Group Like Terms

-0.8b + 3.2b + 4.1c - 0.1c

Add Similar Elements: -0.8b + 3.2b = 2.4b

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Add Similar Elements: 4.1c - 0.1c = 4c

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$\boxed{[ \ Eclipsed \ ]}$

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e-lub [12.9K]

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Step-by-step explanation:

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