3[–x + (2 x + 1)] = x – 1

Mathematics

1 answer:

photoshop1234 [79]3 years ago

3 0

Answer:

Step-by-step explanation:

$3[-x + (2 x + 1)] = x -1\\\\\mathrm{Expand\:}3\left(-x+\left(2x+1\right)\right):\quad 3x+3\\3x+3=x-1\\$

Collect like terms

$3x -x =-1-3$

Add similar elements

$2x = -4\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2x}{2}=\frac{-4}{2}\\\\Simplify\\\\x = -2$

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Is this right? IDK I need help!!!

True [87]

Answer:

um... you are wrong

Step-by-step explanation:

its the the last one

you can't add when its division

you can change exponents from 1/x^-2

to x^2

<h2><em><u>I nweed brainliest</u></em></h2>

5 0

3 years ago

11. The probability that a dessert sold at a certain cafe contains chocolate is 75%. The probability that a dessert containing c

raketka [301]

probability that a dessert sold at a certain cafe contains chocolate is 86%.

The probability that a dessert containing chocolate also contains nuts is 30%.

Find the probability that a dessert chosen at random contains nuts given that it contains chocolate

P(nuts given chocolate) = .30/.86 = .349 or 34

6 0

3 years ago

URGENT!!!!!

hichkok12 [17]

Answer:

Step-by-step explanation:

1. Cross Multiply. $\frac{5}{6} =\frac{30}{x}$