Question

Complete 6,7 for 5-8 points.

Answer 1

Answer:

Step-by-step explanation:

6)Let the number  be x

Product of a number and -4  = x * -4 = -4x

Product of a number and -4 increase by 3 : -4x + 3

-4x +3 = 9

Subtract 3 from both sides

-4x + 3 - 3 =  9 - 3

-4x = 6

Divide both sides by (-4)

-4x/-4 = 6/-4

x = -3/2

x = -1 1/2

7)Let the number be x

$\frac{x}{6}-9=11$

Add 9 to both sides

$\frac{x}{6}-9+9=11+9\\\\\frac{x}{6}=20$

Multiply  both sides with 6

$\frac{x}{6}*6=20*6$

x = 120

Answer 2

Multiply both sides with 6