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Sliva [168]
4 years ago
7

Solve easy equation (for points) 8+x+15=20

Mathematics
1 answer:
Andru [333]4 years ago
7 0

Answer:

x= -3

Step-by-step explanation:

You're Welcome :)

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Question 8 (1 point)
AleksandrR [38]

Answer:

solution is x=3

Step-by-step explanation:

logx-log3=log(x-2)

apply log property

log a- log b= log a/b

logx-log3=log(x-2)\\log (\frac{x}{3} )=log(x-2)

we have log on both sides

so we remove the log and make the arguments equal

\frac{x}{3} = x-2

solve for x, multiply whole equation by 3

x=3(x-2)\\x=3x-6\\x-3x=-6\\-2x=-6\\x=3

now plug in 3 for x  and check

logx-log3=log(x-2)\\log3-log3=log(3-2)\\0=0

solution is x=3

8 0
3 years ago
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andrey2020 [161]

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Step-by-step explanation:

8 0
3 years ago
A line passes through the points -3 -4 and 6 2 what is the Y intercept of this line? -3 -2 2 or 3​
Ymorist [56]

Answer:

y=-2

Step-by-step explanation:

Hello : let  A(-3,-4)    B(6,2)

the slope is :   (YB - YA)/(XB -XA)

(2+4)/(6+3)  = 6/9 = 2/3

an equation is the line is : y = ax+b        a is a slope

y = (2/3)x+b

but this line passes by (6;2)

so : 2 = (2/3)(6)+b

b = -2

the equation is : y = (2/3)x-2

the the Y intercept of this line when : x= 0   so : y = (2/3)(0)-2

y=-2

8 0
3 years ago
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