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joja [24]
3 years ago
12

7x-5=8(x+3) solve for x​

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
6 0

Answer:

The value of x is -29.

Step-by-step explanation:

We are given an algebraic equation and have one goal: solve for x. We can use simplifying techniques as well as addition and subtraction to solve this equation.

\text{7x - 5 = 8(x + 3) \ \ \ Distribute the 8 throughout the parentheses.}\\\text{7x - 5 = 8x + 24 \ \ \ \ Subtract 7x from both sides.}\\\text{-5 = x + 24 \ \ \ \ \ \ \ \ \ \ Flip the equation.}\\\text{x + 24 = -5 \ \ \ \ \ \ \ \ \ \ Subtract 24 from both sides.}\\\small\boxed{\bold{{x = -29}}}

Now that we have solved for x, we can plug in -29 to see if we get a true statement.

\text{7(-29) - 5 = 8(-29 + 3)}\\\text{-203 - 5 = -232 + 24}\\\text{-208 = -208} \ \checkmark

Because we ended up with a true statement, we have determined that the value of x is -29.

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scZoUnD [109]
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Probability that none of the top 10 most common names appears is P(0) = 11C0 (0.096)^0 (0.904)^(11 - 0) = (0.904)^11 = 0.3295
Thus, the probability that at least one of the 10 most common names appear is 1 - 0.3295 = 0.6705

Therefore, I will be supprised that none of the names of the authors were among the 10 most common names given that the probability that at least one of the names appear is 67%.
6 0
3 years ago
If ab = 20 cm and bc = 4 cm, then what are the possible lengths for ac so that ab, bc and ac can form a triangle?
telo118 [61]
16<ac<24
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3 0
3 years ago
What is the area, in square centimeters, of triangle Z?​
sveticcg [70]

9514 1404 393

Answer:

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Step-by-step explanation:

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3 years ago
Find the total surface area of this cuboid.​
AnnyKZ [126]

Answer:

use the formula

Step-by-step explanation:

its 2lw+2lh+2hw

h=5

w=4

l=6

4 0
3 years ago
Read 2 more answers
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3 years ago
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