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3 years ago

Can someone please solve this x + 7 = 12

Mathematics

2 answers:

Yuliya22 [10]3 years ago

8 0

Answer:

x=5

Step-by-step explanation:

change to x=12-7

subtract

x=5

lbvjy [14]3 years ago

8 0

Subtract 7 on both sides:
x+7=12
-7 -7
Subtract 12-7:
x=5

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Answer:

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3 years ago

Consider the following.3x + 3y = 8(a) Find y' by implicit differentiation.(b) Solve the equation explicitly for y and differenti

ludmilkaskok [199]

Answer:

a.y'=-1

b.y'=-1

c.Yes

Step-by-step explanation:

We are given that consider a function

$3x+3y=8$

Implicit function: That function is a relation in which dependent variable can not be expressed in terms of independent variable

Explicit function: It is that function in which dependent variable can be expressed in terms of independent variable.

a. $3x+3y=8$

Differentiate w.r.t x then we get

$3+3\frac{dy}{dx}=0$

$3\frac{dy}{dx}=-3$

$\frac{dy}[dx}=\frac{-3}{3}=-1$

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b. $3x+3y=8$

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Differentiate w.r.t x then we get

$\frac{dy}{dx}=\frac{-3}{3}=-1$

$\frac{dy}{dx}=y'=-1$

When we substituting the value of y obtained from part b into a solution of part a then we get

$y'=-1$

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2 years ago

• Use whichever method you prefer (the area model or the distributive property)

kolbaska11 [484]

Answer: 2a^2+22a+−1

Step-by-step explanation:

Let's simplify step-by-step.

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=2a^2+−5a+27a+−1

Combine Like Terms:

=2a^2+−5a+27a+−1

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