Answer:
y = -7
Step-by-step explanation:
If x equals -14 then you would plug it in and the equation would be -2(-14)-3y=49
The new equation would be 28-3y=49
Then you would subtract 28 from both sides and get -3y=21
Lastly you would divide both sides by -3 and get y=-7
The width of rectangle is 21 meters.
Step-by-step explanation:
Given,
Perimeter of rectangle = 98 meters
Width of rectangle = w
Length of rectangle = w+7
Perimeter of rectangle = 2(Length+Width)
Perimeter = 

Dividing both sides by 4

Width of rectangle = 21 meters
The width of rectangle is 21 meters.
Keywords: rectangle, perimeter
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LnA +LnB= LnA.B
so we get <span>Log3(X-5)+log3(x+3)=Ln3(x-5)(x+3)=2 implies
</span>(x-5)(x+3)=2^3=8, so we can solve easily the quadratic equation
x^2-2x-23=0, there are two solution x=1 -sqrt(24), and x=1+sqrt(24)