Find the value of x that makes the equation true. 2x + 3 = 20

A. x= 17/2
B. x= 5
C. x= 10
D. x= 2/17

A. x = 17/2

Step-by-step explanation:

2x+3=20

to find the value of x, isolate the variable!

1. Subtract 3 from each side of the equation

2x + 3 - 3 = 20 - 3

[+3-3 is 0 so we can take that out; 20-3=17]

2x = 17

2. Divide each side by 2

2x/2 = 17/2

[2x/2 = 2/2*x = 1*x = x]

x = 17/2

hope this helped n happy mathing lmfaldsfk

one of each metals

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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