Question

Complete 6,7 for 5-8 points.

Answer 1

Multiply both sides with 6

Answer 2

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

`(x)/(6)-9=11\\\\`

Add 9 to both sides

`(x)/(6)-9+9=11+9\\\\(x)/(6)=20\\`

Multiply both sides with 6

`(x)/(6)*6=20*6\\\\`

x = 120