12(5+2x)=4x-10x
60+24x=-6x
60=-30x
x= -2
Hello!
The answer is 20/60 simplest form is 1/3
To get 20/60 you must multiply the Numerator by Numerator (4*5) and Denominator by Denominator (5*12). Your answer will be 20/60.
To get 1/3 you must simplify a number that can go into 20 and 60 (which is 10). Divide 20/10 and 60/10 and get 2/6. Simplify 2/6 by 2 and get 1/3.
The angles are set to equal to eachother since alternate interior angles are congruent
so 6x+5=4x+45
Solve for X
-5 from both sides
6x=4x+40
-4x both sides
2x=40
÷2 both sides
X=20
Now plug in the answer for X in angle A to figure out what degree angle A is 6x+5
6 (20)+5
120+5
5.6 to 4,7 according to 818394 you should be nearing 83832