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
[tex]\frac{x}{6}-9=11\\\\[/tex]
Add 9 to both sides
[tex]\frac{x}{6}-9+9=11+9\\\\\frac{x}{6}=20\\[/tex]
Multiply both sides with 6
[tex]\frac{x}{6}*6=20*6\\\\[/tex]
x = 120
