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.

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1