solve this system of linear equations, separate the x- and y-values with a comma. -14x=-72-19y 9x=87+19y

x = - 3, y = - 6

Step-by-step explanation:

Given the 2 equations

- 14x = - 72 - 19y → (1)

9x =  87 + 19y → (2)

Add the 2 equations term by term to eliminate the y- term

- 5x = 15 ( divide both sides by - 5 )

x = - 3

Substitute x = - 3 into either of the 2 equations and evaluate for y

Substituting into (2)

9(- 3) = 87 + 19y

- 27 = 87 + 19y ( subtract 87 from both sides )

- 114 = 19y ( divide both sides by 19 )

- 6 = y

Thus x = - 3, y = - 6

sine

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.