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vodka [1.7K]
3 years ago
15

Im having to write this problem as a equation then solvethe sum of 4xs a number and 9 is equal to3xs the number,im having to wri

te this as a equation using x as the variable
Mathematics
1 answer:
natita [175]3 years ago
4 0

Answer:

apjoisdpojaspocjdsapodjopsapjdcpjsa

Step-by-step explanation:

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How do I do number 29?
Oksi-84 [34.3K]
-2x+ 12 = x^2 +16
-2x -4 = x^2
-4= x^2 + 2x
-4= 3x
-4/3 = 3/3x
-1.333 (repeated) = x
4 0
3 years ago
Evaluate log 1025 + log 1040 ​
SCORPION-xisa [38]

Answer:

6.02775720469

Step-by-step explanation:

step one: double check with calculator pls :)

step two pls <u><em>brainliest </em></u>

7 0
2 years ago
Read 2 more answers
In a chemistry class, 12 L of a 12% alcohol solution must be mixed with a 20% solution to get a 14% solution. How many liters of
tigry1 [53]
Let x = liters 20% solution to be added
then

.12(12) + .20x = .14(12+x)
.12(12) + .20x = .14(12+x)
1.44 + .20x = 1.68 + .14x
.20x = .24 + .14x
.06x = .24
x = 4 liters


Hope this helped!!
3 0
3 years ago
Which equations are true for x = -2 and x = 2? Select two options
Flauer [41]

Answer:

A and C

Step-by-step explanation:

solving the equations

A

x² - 4 = 0 ( add 4 to both sides )

x² = 4 ( take square root of both sides )

x = ± \sqrt{4} = ± 2 ← required solution

B

x² = - 4 ← has no real solutions

C

4x² = 16 ( divide both sides by 4 )

x² = 4 ( take square root of both sides )

x = ± \sqrt{4} = ± 2 ← required solution

D

2(x - 2)² = 0 , then

x- 2 = 0 ( add 2 to both sides )

x = 2 ← not the required solution

5 0
2 years ago
Read 2 more answers
Ffffffffffffffffffff
scoundrel [369]

Answer:

1

16-7-(2×4)

16-7-(8)

16-7=9-8=1

5 0
3 years ago
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