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kvv77 [185]
4 years ago
14

(d+3d) - (-d+ 2) ; d = 3

Mathematics
1 answer:
garik1379 [7]4 years ago
4 0
What they want you to do is subsitute 3 for d write 3 for everywhere you see d and remember that 3d means 3 times d and -d means -1 times d (d+3d)-(-d+2) d=3 (3+3(3))-(-3+2) (3+9)-(2-3) (12)-(-1) 12+1 13 answer is 13
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Combine like terms. 6x + 4 – 3x + 5
Ivahew [28]
X = 3


Combine like terms: -4 + -5 = -9
-9 + 6x + -3x = 0
Combine like terms: 6x + -3x = 3x
-9 + 3x =0

Solving -9 + 3x = 0

Solving for variable ‘x’

Moving all terms containing my x to the left, all other terms to the right
Add ‘9’ to each side of the equation -9 + 9 + 3x = 0 + 9

Combine like terms: -9 + 9 = 0
0+3x=0+9
3x = 0 + 9

Combine like terms: 0 + 9 = 9
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Divide each side by ‘3’.
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7 0
3 years ago
What is the answer to 3x + 7 = 82?
erastovalidia [21]

Answer:

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Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
I need help please!!!
miv72 [106K]

Answer:

56

Step-by-step explanation:

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5 0
3 years ago
The larger of two numbers is 1 more than twice the smaller. The sum of the numbers is 20 less than three times the larger. Find
natita [175]
Let x be the larger number; Let y be the smaller number.
EQUATIONS:
x-2y=1
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---------
Rewrite as
x-2y=1
2x-y=20
==========
<span> </span>
Multiply the 1st equation by 2 to get:
2x-4y=2
Subtract this result from the 1st equation to get:
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Substitute that into the 1st equation to get:
x-2*6=1
x=13
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Solution: x=13; y=6

8 0
3 years ago
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AVprozaik [17]
18,560 - 15,787 = 2,773

2773/18560 x 100 = 14.94 which is rounded up to about 15%
3 0
2 years ago
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