Solve for x. 4x-39>-43 and 8x+31<23

no solutions

Step-by-step explanation:

4x-39>-43

Add 39 to each side

4x-39+39>-43+39

4x > -4

Divide each side by 4

4x/4 > -4/4

x >-1

8x+31<23

Subtract 31 from each side

8x+31-31<23-31

8x < -8

Divide each side by 8

8x/8 < -8/8

x < -1

Assuming that you have a system of inequalities, there is no overlap when x<-1 and x>-1 so there is no solution.

No real solutions

Step-by-step explanation:

4x - 39 > -43

4x > -4

x > -1

and

8x + 31 < 23

8x < -8

x < -1

And is the intersection, the common region.

There are no common values of x in:

x < -1 and x > -1

Hence, no solution

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: