Question

Help me to solve chart

Answer 1

1 = (3 x 1) - 15

2= (3 x 2)- 15

3= (3 x 3)- 15

Explanation:

1= -12

2= 9

3= 6

Answer 2

Here,

the given expression is:

3x-15

when x=1

then

=3×1-15

=3-15

=-12

when x=2

then

=3×2-15

=6-15

=9

when x=3

then

=3×3-15

=9-15

=6

the value of x in expression 3x-15 is -12,9 and 6.