Answer:
x=-16 (answer : C
Step-by-step explanation:
hello:
put x=-16 in this equation : 7x-2(x+1)=6x+14
7(-16)-2(-16+1)=6(-16)+14
-112-2(-15) = -96+14
-112+30= -96+14
-82 = -82 .....true
They're used to measure or divide things¿
This is a bit of algebra.. you do not know either side so the width you will label x and the length you will label x +8. we know that if you add all 4 sides, you will have 256 feet. x + x + (x+8) + (x+8)=256 4x+16=256, Subtract 16 from both sides and you have 4x=240. divide by 4 on both sides and you get. x=60.. That makes the width = 60ft and the length = 68ft
Esta es la respuesta 51+52+53= 156
Answer:
The perimeter of rectangle is 
Step-by-step explanation:
Let
x------> the length of rectangle
y----> the width of rectangle
we know that
The area of the constructed figure is equal to
so
-----> equation A
-----> equation B
substitute equation B in equation A
using a graphing calculator to resolve the quadratic equation
the solution is
Find the value of x
Find the perimeter of rectangle
The perimeter of rectangle is equal to
