Answer:
x=-5
Step-by-step explanation:
First set the values equal to each other;
5x-10=3x-20
Add 10 to both sides;
5x-10+10=3x-20+10
Simplify;
5x=3x-10
Subtract 3x from both sides;
5x-3x=3x-10-3x
Simplify;
2x=-10
Divide both sides by 2;
2x/2=-10/2
Simplify 2x/2;
2/2=1
=x
Simplify -10/2;
Apply the fraction rule;
=-10/2
Divide the numbers ; 10/2
x=-5
Yes because they are congruent just dilated in size
Answer:
-7
Step-by-step explanation:
<span>(SAT Prep) In the given figure, the reflex angle ∠DOB has measure of 3.5</span>y<span> while the measure of ∠AOD is </span>y. Find the measure of the non-reflex ∠DOB in degrees.