Solve the system of equations using substitution, elimination by addition, or augmented matrix methods (your choice). show work. 5x - 3y = 11 7x + 4y = -1

 The required solution is  x = 1  and  y = -2.

Step-by-step explanation:  We are given to solve the following system of equations using substitution, elimination by addition or augmented matrix methods :

We will be using the method of SUBSTITUTION to solve the given system.

From equation (i), we have

Substituting the value of x from equation (iii) in equation (ii), we get

Putting the value of y in equation (iii), we get

Thus, the required solution is  x = 1  and  y = -2.

d i think

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.