Solve systems of two linear equations by using the linear combination method

1). 3x+2y=6

-6x-3y=-6

2). 7x-4y=-3

2x+y=15

3). 5x+6y=-16

2x+10y=5

4). -15x-2y=-31

4x+6y=11

5). 7x+2y=-3

-14x-4y=6

6). -5x+2y=-10

3x-6y=-18

solve using either algebraic method (substitution or combination)

1). x-y=3

-2x+2y=-6

2). -3x+y=11

5x-2y=-16

3). x-4y=-3

-3x+8y=-1

4). -3x+7y=6

5x-y=10

5). 3x-7y=20

-11x+10y=5

6).4x+9y=-10

-8x-12y=8

7). -x+5=17

2x-10y=-34

a box 3 3/4 feet long or 4+ feet.

step-by-step explanation:

answer: haha (: i’ll go see what it is

step-by-step explanation:

these sign is used to tell weather the number is greater or less than the number   <   or >     but this sign means its equal =    

hope this you and

step-by-step explanation:

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