How do you write this equation x+5=2(7+x)

x=−9

Step-by-step explanation:

Let's solve your equation step-by-step.

x+5=2(7+x)

Step 1: Simplify both sides of the equation.

x+5=2(7+x)

x+5=(2)(7)+(2)(x)(Distribute)

x+5=14+2x

x+5=2x+14

Step 2: Subtract 2x from both sides.

x+5−2x=2x+14−2x

−x+5=14

Step 3: Subtract 5 from both sides.

−x+5−5=14−5

−x=9

Step 4: Divide both sides by -1.

−x

−1

=

9

−1

x=−9

x=−9

HOPE I HELPED :)

-lvr

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.