Describe the steps you would use to solve this equation: 3a + 3 - 6a = 15. Include your answer in the description. Please hurry!!!

a=2

Step-by-step explanation:

3a + 3 - 6a = 15

combine like terms: 3a +6a

9a + 3 = 15

add 3 to 15

9a = 18

divide 9 from 18

a = 2

plug it into the equation to check for errors!

3 (2) + 3 - 6 (2) = 15

3 (2) = 6 -6 (2) = -12

6 + 3 - 12 = 15

3 - 12 = 9

9 + 6 = 15

Hope this helps! ❤

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc