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4 years ago

Whats the answer 3(4−x)=13+3x

Mathematics

2 answers:

jenyasd209 [6]4 years ago

8 0

Answer:

X= -1/6

Step-by-step explanation:

kirill115 [55]4 years ago

8 0

Answer:

x=-1/6

Alternate form

x=-0.16, x=6^-1

Step-by-step explanation:

3(4-x)=13+3x

Distribute 3 through the parentheses

12-3x=13+3x

Move the variable to the left-hand side and change its sign

12-3x-3x=13

-3x-3x=13-12

collect like terms

-6x=13-12

-6x=1

Divide both sides of the eqation by -6

x=-1/6

Alternate form

x=-0.16, x=6^-1

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3 years ago

Prove the following identity sin x(sec x+cscx)= tan x +1

Alexxandr [17]

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Step-by-step explanation:

________________________________________________________

FACTS TO KNOW BEFORE SOLVING :-

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In the question ,

L.H.S. = $\sin x (\sec x + cosec \: x)$

R.H.S. = $\tan x + 1$

Lets solve L.H.S. first.

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3 years ago

What are the solutions to the system of equations? y=x2−7x+12y=−x+7

kap26 [50]

Answer:

x = 1, y = 6

x = 5, y = 2.

Step-by-step explanation:

y=x2−7x+12

y=−x+7

Substitute for y in the first equation:

- x + 7 = x^2 - 7x + 12

x^2 - 7x + x + 12 - 7 = 0

x^2 - 6x + 5 = 0

(x - 1)(x - 5) = 0

x = 1, 5.

When x = 1, y = -1 + 7 = 6.

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2 years ago

The value of A is? The value of B is?

bearhunter [10]

Answer:

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Step-by-step explanation:

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