Answer: 20/3
So when solving this equation first distribute our 3,we will now have 3x-15=5.
Next we will Add 15 to both sides of our equation. Now we have 3x=20.Then divide our terms,and you will have 3x/3 = 20/3
<u>This will leave you with 1x=20/3. </u>
So the X is 20/3.
Hope that helped!
1) 
2)
is a right angle (perpendicular lines form right angles)
3)
is a right triangle (definition of a right triangle)
4)
and
are complementary (the acute angles of a right triangle are complementary)
1b,
2b,
3a, which grade is this?