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harkovskaia [24]
3 years ago
9

Solve P=a+2b+3c for b

Mathematics
2 answers:
Molodets [167]3 years ago
7 0
What you do here is, isolate everything to solve for the variable b. Steps as following:

P-3c=a+2b
P-3c-a=2b
(P-3c-a)/2=b


Final answer: (P-3c-a)/2 = b
Gwar [14]3 years ago
3 0
If you're solving for b, that means you want to isolate b to one side.

P = a + 2b + 3c

Subtract 3c from both sides:

P - 3c = a + 2b

Subtract a from both sides:

P - 3c - a = 2b

Divide both sides by 2:

b = (P - 3c - a)/2
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ratelena [41]

Answer:

<em>x = -6</em>

Step-by-step explanation:

<u>Equations</u>

Solve the equation:

x + 6 = -x - 6

We must find the value of x that makes the identity above true.

Let's join all the variables on the left side and the numbers on the right side.

Adding x:

x + 6 + x = -x - 6 + x

The variables cancel out on the right side:

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Subtracting 6:

2x + 6 - 6 = -6 -6

The 6 and -6 are canceled out:

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Dividing by 2:

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8 0
3 years ago
Which number sentence is not true?
melomori [17]

Answer:

D

Step-by-step explanation:

The absolute value of a number is the actual distance of the number from zero. So, it is always a positive number. No negative value.

A) I -4.5I = 4.5    TRUE

B) I 0I  < I -45I   TRUE  

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C) I 45 I > 0         TRUE

D) I4.5 I > I - 45 I     FALSE

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5 0
3 years ago
Worth five points! it doesnt tell me if what answer is right but if i get 75% or up i will mark the first person who answered wi
Bezzdna [24]
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Answer:

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Step-by-step explanation:

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