Solve for y. Simplify your answer as much as possible. 19 = 2y - 15

y=17

Step-by-step explanation:

19=2y-15

move the variable to the left-hand side and change its sign

-2y+19=-15

move the constant to the right-hand side and change its sign

-2y=-15-19

Calculate the difference

-2y=-34

divide both sides by -2

y=17

start with a line segment pq that we will copy. mark a point r that will be one endpoint of the new line segment. set the compasses' point on the point p of the line segment to be copied. adjust the compasses' width to the point q. the compasses' width is now equal to the length of the line segment pq.

step-by-step explanation:

12

step-by-step explanation:

a triangle's   full angle is 180 degrees so 180 - 156 = 24. 24/2=12