If 2 - 4(y + 1) = 2y + 16, what is the value of y?
show all work, .

y = -3

Step-by-step explanation:

Do the multiplication:

2 - 4(y + 1) = 2y + 16   →   2 - 4y - 4 = 2y + 16

Combine like terms on the left side, obtaining:

-4y - 2 = 2y + 16

Combine the y terms:  -2 = 6y + 16

Add 2 to both sides simplify this equation further:

0 = 6y + 18

Then y = -3

m

step-by-step explanation:

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.