3 years ago

-5x + 4(2x + 1) please help! (simplify it)

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

5 0

-5x + 4(2x + 1)
-5x + 8x + 4
= 3x + 4

Karolina [17]3 years ago

4 0

Answer:

3x+4

Step-by-step explanation:

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natima [27]

Answer:

x = 57

Step-by-step explanation:

x−53 = 4

Add 53 to each side

x-53+53 = 4+53

x = 57

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ivanzaharov [21]

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3 years ago

Determine which method works, substitution or elimination? 4x^2+3y^2=42x^2-6y^2=-3

GarryVolchara [31]

Given:

$\begin{gathered} 4x^2+3y^2=4 \\ \\ 2x^2-6y^2=-3 \end{gathered}$

Find the method .

Sol:

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2eq(1) + eq(2) then,

$8x^2+6y^2=8$

Then apply the elimination method.

$\begin{gathered} 8x^2+6y^2=8 \\ 2x^2-6y^2=-3 \\ --------- \\ 10x^2=5 \\ \\ x^2=\frac{5}{10} \\ \\ x=\sqrt{\frac{1}{2}} \end{gathered}$

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1 year ago

What is the length of BC?

MrRissso [65]

If Two Angles in a Triangle are Equal, Then Sides Corresponding to those Angles are also Equal

From the Figure, We can Notice that ∠C = ∠B

⇒ Length of AC = Length of AB

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4 years ago